Hidden Visual Studio shortcuts (Tips and Tricks)

Here is an list of hidden shortcuts for Visual Studio IDE.
Go To Definition - F12
Navigate through Go To Definition Stack - CTRL + SHIFT + 7 (goes forward), CTRL + SHIFT + 8 (goes back)
Find all references - SHIFT + F12
Navigate through any list in IDE - F8
Code snippets - CTRL + SPACE
Insert snippet - press TAB 2x.
Display a list of all possible snippets - CTRL + K + X
Insert missing reference - CTRL + .

CodeRush Xpress add-in features & shortcuts (I'll mention just thous which are useful for me, but there are much more of them):
Select Camel parts of text - SHIFT +ALT + arrows (<=, =>).
Select logical code blocks - CTRL + ALT + (+/-).

Resources: Microsoft Visual C# IDE: Tips and Tricks