Have you ever found yourself wishing you could roll back a few hours to a piece of code you had working but have made changes to? This extension provides an early preview of an automatic, no-configuration history tracking facility for your local machine. Just install the extension, and whatever you do in your projects and solutions, it silently and efficiently tracks the changes you make to any files that you have opened in the Visual Studio Editor. Then, when you find yourself in need of back-tracking to
Source: AutoHistory – Visual Studio Marketplace
See this Channel 9 video: http://go.microsoft.com/fwlink/?LinkID=390499