Minimize all windows in windows 7

Please note: These tips apply primarily to Windows 7

Minimize all windows (except the one that you’re working on).  
When your desktop becomes so cluttered that you
can’t find anything, this step is a good way to regain focus. Grab the title bar of the 
window you want, and shake your mouse a little. All other windows will vanish into 
the task-bar. Repeat to undo and restore all of your hidden windows.