You can change the task list in Visual Studio by clicking on TOOLS → OPTIONS → ENVIRONMENT → TASK LIST
In the list of tokens, you can add more tokens specific to what you want to call your tasks.
For example, I have the EDITING token set, so in any module, class or method I'm working on, I just add the comment "EDITING: (Any method name is ect ..)", and I can quickly see where I left off and will return too by double clicking.

Here are a few other tokens that I find useful ... 
If you need more advanced project and code tracking, you should check out Visual Studio Online. It is free for up to 5 users. http://www.visualstudio.com/en-us/products/visual-studio-online-overview-vs
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