diff --git a/ICD.Common.Utils.Tests/Extensions/ListExtensionsTest.cs b/ICD.Common.Utils.Tests/Extensions/ListExtensionsTest.cs
index b96facc..44aa8d1 100644
--- a/ICD.Common.Utils.Tests/Extensions/ListExtensionsTest.cs
+++ b/ICD.Common.Utils.Tests/Extensions/ListExtensionsTest.cs
@@ -8,14 +8,14 @@ namespace ICD.Common.Utils.Tests.Extensions
 	public sealed class ListExtensionsTest
 	{
 		[Test]
-		public void AddSortedTest()
+		public void InsertSortedTest()
 		{
 			List<int> testList = new List<int>();
 
-			Assert.AreEqual(0, testList.AddSorted(2));
-			Assert.AreEqual(1, testList.AddSorted(3));
-			Assert.AreEqual(0, testList.AddSorted(1));
-			Assert.AreEqual(1, testList.AddSorted(2));
+			Assert.AreEqual(0, testList.InsertSorted(2));
+			Assert.AreEqual(1, testList.InsertSorted(3));
+			Assert.AreEqual(0, testList.InsertSorted(1));
+			Assert.AreEqual(1, testList.InsertSorted(2));
 
 			Assert.AreEqual(4, testList.Count);
 			Assert.AreEqual(1, testList[0]);
@@ -25,15 +25,15 @@ namespace ICD.Common.Utils.Tests.Extensions
 		}
 
 		[Test]
-		public void AddSortedComparerTest()
+		public void InsertSortedComparerTest()
 		{
 			List<int> testList = new List<int>();
 			IComparer<int> comparer = new InverseComparer();
 
-			Assert.AreEqual(0, testList.AddSorted(2, comparer));
-			Assert.AreEqual(0, testList.AddSorted(3, comparer));
-			Assert.AreEqual(2, testList.AddSorted(1, comparer));
-			Assert.AreEqual(1, testList.AddSorted(2, comparer));
+			Assert.AreEqual(0, testList.InsertSorted(2, comparer));
+			Assert.AreEqual(0, testList.InsertSorted(3, comparer));
+			Assert.AreEqual(2, testList.InsertSorted(1, comparer));
+			Assert.AreEqual(1, testList.InsertSorted(2, comparer));
 
 			Assert.AreEqual(4, testList.Count);
 			Assert.AreEqual(3, testList[0]);
diff --git a/ICD.Common.Utils/Collections/IcdOrderedDictionary.cs b/ICD.Common.Utils/Collections/IcdOrderedDictionary.cs
index 700cc54..01c88b0 100644
--- a/ICD.Common.Utils/Collections/IcdOrderedDictionary.cs
+++ b/ICD.Common.Utils/Collections/IcdOrderedDictionary.cs
@@ -106,7 +106,7 @@ namespace ICD.Common.Utils.Collections
 			if (m_Dictionary.ContainsKey(key))
 				throw new ArgumentOutOfRangeException("key", "An item with the same key has already been added.");
 
-			int index = m_OrderedKeys.AddSorted(key, m_Comparer);
+			int index = m_OrderedKeys.InsertSorted(key, m_Comparer);
 			m_ValuesOrderedByKey.Insert(index, value);
 
 			m_Dictionary[key] = value;
diff --git a/ICD.Common.Utils/Extensions/ListExtensions.cs b/ICD.Common.Utils/Extensions/ListExtensions.cs
index e6e37a3..e66bc17 100644
--- a/ICD.Common.Utils/Extensions/ListExtensions.cs
+++ b/ICD.Common.Utils/Extensions/ListExtensions.cs
@@ -10,14 +10,157 @@ namespace ICD.Common.Utils.Extensions
 	/// </summary>
 	public static class ListExtensions
 	{
+		#region Add Sorted
+
 		/// <summary>
-		/// Adds the items into a sorted list.
+		/// Attempts to add the item to the sorted list.
+		/// Returns false if the item already exists in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <returns></returns>
+		[PublicAPI]
+		public static bool AddSorted<T>(this IList<T> extends, T item)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			return extends.AddSorted(item, Comparer<T>.Default);
+		}
+
+		/// <summary>
+		/// Attempts to add the item to the sorted list.
+		/// Returns false if the item already exists in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <typeparam name="TProp"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="predicate"></param>
+		[PublicAPI]
+		public static bool AddSorted<T, TProp>(this IList<T> extends, T item, Func<T, TProp> predicate)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (predicate == null)
+				throw new ArgumentNullException("predicate");
+
+			PredicateComparer<T, TProp> comparer = new PredicateComparer<T, TProp>(predicate);
+			return extends.AddSorted(item, comparer);
+		}
+
+		/// <summary>
+		/// Attempts to add the item to the sorted list.
+		/// Returns false if the item already exists in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="comparer"></param>
+		/// <returns></returns>
+		[PublicAPI]
+		public static bool AddSorted<T>(this IList<T> extends, T item, IComparer<T> comparer)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (comparer == null)
+				throw new ArgumentNullException("comparer");
+
+			int index = extends.BinarySearch(item, comparer);
+			if (index >= 0)
+				return false;
+
+			index = ~index;
+			extends.Insert(index, item);
+
+			return true;
+		}
+
+		#endregion
+
+		#region Remove Sorted
+
+		/// <summary>
+		/// Attempts to remove the item from the sorted list.
+		/// Returns false if the item does not exist in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <returns></returns>
+		[PublicAPI]
+		public static bool RemoveSorted<T>(this IList<T> extends, T item)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			return extends.RemoveSorted(item, Comparer<T>.Default);
+		}
+
+		/// <summary>
+		/// Attempts to remove the item from the sorted list.
+		/// Returns false if the item does not exist in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <typeparam name="TProp"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="predicate"></param>
+		[PublicAPI]
+		public static bool RemoveSorted<T, TProp>(this IList<T> extends, T item, Func<T, TProp> predicate)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (predicate == null)
+				throw new ArgumentNullException("predicate");
+
+			PredicateComparer<T, TProp> comparer = new PredicateComparer<T, TProp>(predicate);
+			return extends.RemoveSorted(item, comparer);
+		}
+
+		/// <summary>
+		/// Attempts to remove the item from the sorted list.
+		/// Returns false if the item does not exist in the list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="comparer"></param>
+		/// <returns></returns>
+		[PublicAPI]
+		public static bool RemoveSorted<T>(this IList<T> extends, T item, IComparer<T> comparer)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (comparer == null)
+				throw new ArgumentNullException("comparer");
+
+			int index = extends.BinarySearch(item, comparer);
+			if (index < 0)
+				return false;
+
+			extends.RemoveAt(index);
+
+			return true;
+		}
+
+		#endregion
+
+		#region Insert Sorted
+
+		/// <summary>
+		/// Inserts the items into a sorted list.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
 		/// <param name="extends"></param>
 		/// <param name="items"></param>
 		[PublicAPI]
-		public static void AddSorted<T>(this IList<T> extends, IEnumerable<T> items)
+		public static void InsertSorted<T>(this IList<T> extends, IEnumerable<T> items)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
@@ -25,18 +168,18 @@ namespace ICD.Common.Utils.Extensions
 			if (items == null)
 				throw new ArgumentNullException("items");
 
-			extends.AddSorted(items, Comparer<T>.Default);
+			extends.InsertSorted(items, Comparer<T>.Default);
 		}
 
 		/// <summary>
-		/// Adds the items into a sorted list.
+		/// Inserts the items into a sorted list.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
 		/// <param name="extends"></param>
 		/// <param name="items"></param>
 		/// <param name="comparer"></param>
 		[PublicAPI]
-		public static void AddSorted<T>(this IList<T> extends, IEnumerable<T> items, IComparer<T> comparer)
+		public static void InsertSorted<T>(this IList<T> extends, IEnumerable<T> items, IComparer<T> comparer)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
@@ -47,11 +190,11 @@ namespace ICD.Common.Utils.Extensions
 			if (comparer == null)
 				throw new ArgumentNullException("comparer");
 
-			items.ForEach(i => extends.AddSorted(i, comparer));
+			items.ForEach(i => extends.InsertSorted(i, comparer));
 		}
 
 		/// <summary>
-		/// Adds the items into a sorted list.
+		/// Inserts the items into a sorted list.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
 		/// <typeparam name="TProp"></typeparam>
@@ -59,7 +202,7 @@ namespace ICD.Common.Utils.Extensions
 		/// <param name="items"></param>
 		/// <param name="predicate"></param>
 		[PublicAPI]
-		public static void AddSorted<T, TProp>(this IList<T> extends, IEnumerable<T> items, Func<T, TProp> predicate)
+		public static void InsertSorted<T, TProp>(this IList<T> extends, IEnumerable<T> items, Func<T, TProp> predicate)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
@@ -71,33 +214,54 @@ namespace ICD.Common.Utils.Extensions
 				throw new ArgumentNullException("predicate");
 
 			PredicateComparer<T, TProp> comparer = new PredicateComparer<T, TProp>(predicate);
-			extends.AddSorted(items, comparer);
+			extends.InsertSorted(items, comparer);
 		}
 
 		/// <summary>
-		/// Adds the item into a sorted list.
+		/// Inserts the item into a sorted list.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
 		/// <param name="extends"></param>
 		/// <param name="item"></param>
 		[PublicAPI]
-		public static int AddSorted<T>(this IList<T> extends, T item)
+		public static int InsertSorted<T>(this IList<T> extends, T item)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
 
-			return extends.AddSorted(item, Comparer<T>.Default);
+			return extends.InsertSorted(item, Comparer<T>.Default);
 		}
 
 		/// <summary>
-		/// Adds the item into a sorted list.
+		/// Inserts the item into a sorted list.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <typeparam name="TProp"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="predicate"></param>
+		[PublicAPI]
+		public static int InsertSorted<T, TProp>(this IList<T> extends, T item, Func<T, TProp> predicate)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (predicate == null)
+				throw new ArgumentNullException("predicate");
+
+			PredicateComparer<T, TProp> comparer = new PredicateComparer<T, TProp>(predicate);
+			return extends.InsertSorted(item, comparer);
+		}
+
+		/// <summary>
+		/// Inserts the item into a sorted list.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
 		/// <param name="extends"></param>
 		/// <param name="item"></param>
 		/// <param name="comparer"></param>
 		[PublicAPI]
-		public static int AddSorted<T>(this IList<T> extends, T item, IComparer<T> comparer)
+		public static int InsertSorted<T>(this IList<T> extends, T item, IComparer<T> comparer)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
@@ -114,27 +278,50 @@ namespace ICD.Common.Utils.Extensions
 			return index;
 		}
 
+		#endregion
+
+		#region Contains Sorted
+		
 		/// <summary>
-		/// Adds the item into a sorted list.
+		/// Returns true if the sorted list contains the given item.
 		/// </summary>
 		/// <typeparam name="T"></typeparam>
-		/// <typeparam name="TProp"></typeparam>
 		/// <param name="extends"></param>
 		/// <param name="item"></param>
-		/// <param name="predicate"></param>
+		/// <returns></returns>
 		[PublicAPI]
-		public static int AddSorted<T, TProp>(this IList<T> extends, T item, Func<T, TProp> predicate)
+		public static bool ContainsSorted<T>(this IList<T> extends, T item)
 		{
 			if (extends == null)
 				throw new ArgumentNullException("extends");
 
-			if (predicate == null)
-				throw new ArgumentNullException("predicate");
-
-			PredicateComparer<T, TProp> comparer = new PredicateComparer<T, TProp>(predicate);
-			return extends.AddSorted(item, comparer);
+			return extends.ContainsSorted(item, Comparer<T>.Default);
 		}
 
+		/// <summary>
+		/// Returns true if the sorted list contains the given item.
+		/// </summary>
+		/// <typeparam name="T"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="item"></param>
+		/// <param name="comparer"></param>
+		/// <returns></returns>
+		[PublicAPI]
+		public static bool ContainsSorted<T>(this IList<T> extends, T item, IComparer<T> comparer)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (comparer == null)
+				throw new ArgumentNullException("comparer");
+
+			return extends.BinarySearch(item, comparer) >= 0;
+		}
+
+		#endregion
+
+		#region Binary Search
+
 		/// <summary>
 		/// Returns the index of the item in the list.
 		/// </summary>
@@ -152,6 +339,17 @@ namespace ICD.Common.Utils.Extensions
 			if (comparer == null)
 				throw new ArgumentNullException("comparer");
 
+			// Array
+			T[] array = extends as T[];
+			if (array != null)
+				return Array.BinarySearch(array, 0, array.Length, item, comparer);
+
+			// List
+			List<T> list = extends as List<T>;
+			if (list != null)
+				return list.BinarySearch(item, comparer);
+
+			// IList
 			int lo = 0;
 			int hi = extends.Count - 1;
 
@@ -171,5 +369,7 @@ namespace ICD.Common.Utils.Extensions
 
 			return ~lo;
 		}
+
+		#endregion
 	}
 }
diff --git a/ICD.Common.Utils/Services/Scheduler/ActionSchedulerService.cs b/ICD.Common.Utils/Services/Scheduler/ActionSchedulerService.cs
index 97bc41f..33b0b2e 100644
--- a/ICD.Common.Utils/Services/Scheduler/ActionSchedulerService.cs
+++ b/ICD.Common.Utils/Services/Scheduler/ActionSchedulerService.cs
@@ -39,7 +39,7 @@ namespace ICD.Common.Utils.Services.Scheduler
 			try
 			{
 				Subscribe(action);
-				m_Actions.AddSorted(action, a => a.NextRunTime);
+				m_Actions.InsertSorted(action, a => a.NextRunTime);
 			}
 			finally
 			{
@@ -195,7 +195,7 @@ namespace ICD.Common.Utils.Services.Scheduler
 			try
 			{
 				m_Actions.Remove(action);
-				m_Actions.AddSorted(action, a => a.NextRunTime);
+				m_Actions.InsertSorted(action, a => a.NextRunTime);
 			}
 			finally
 			{
diff --git a/ICD.Common.Utils/Timers/IcdStopwatch.cs b/ICD.Common.Utils/Timers/IcdStopwatch.cs
index 0e0d84e..1b952d1 100644
--- a/ICD.Common.Utils/Timers/IcdStopwatch.cs
+++ b/ICD.Common.Utils/Timers/IcdStopwatch.cs
@@ -178,7 +178,7 @@ namespace ICD.Common.Utils.Timers
 				long duration = stopwatch.ElapsedTicks;
 				stopwatch.Stop();
 
-				orderedMs.AddSorted(duration);
+				orderedMs.InsertSorted(duration);
 				totalTicks += duration;
 			}