A cool trick that Scott Cate taught me about is the ability to activate Windows 7 jumplists from the keyboard without having to use a mouse.

Simply press the Windows key + the Alt key + [task tray icon index] and the jump list will appear. For example, above VS 2010 is the 4th program icon from the left on my machine – so if I press the Windows Key + Alt + 4 at the same time then the VS jumplist will appear.  You can then use the up and down arrows on your keyboard to select the project you want to load from the jumplist.