Sometimes in your code, you'll leave a comment with a little reminder of what needs to be looked at, refactored, or moved to another file for example. It is really convenient to be able to access all of those comments as a list. And that can be done quite easily in Visual Studio. See example below:
//ToDo: Refactor the function to improve performance
In Visual Studio go to View > Task List, and the Task List will open at the bottom of the application window. It can also be accessed with the following shortcut: Ctrl+,T