What are your favorite, simple Windows-based productivity tricks?

We programmers know our way around the computer better than just about anyone. And we love automation and shortcuts.

What is your favorite time-saving trick, applicable to MS Windows.  
What are your favorite, simple Windows-based productivity tricks?
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We programmers know our way around the computer better than just about anyone. And we love automation and shortcuts.

What is your favorite time-saving trick, applicable to MS Windows.  