Most of us (who use windows to its full extent) have used the command interpreter once or twice. I created this thread out of curiosity. (i may have been a little board....)
I would like anybody to post any tricks they discovered using commands in the command interpreter......

Example:
Did you know that if you enter the boot options menu during startup. And select "safe mode with command prompt", login, and once you hit the command prompt you can type "start explorer.exe" and the windows safe mode GUI will pop up.