Show desktop shortcut in Ubuntu 10.10: Mod4+D (Windows+D)

This is a helpful Windows shortcut (Windows+M) I've been looking for on and off since starting to work with Ubuntu.  I just couldn't take it any more.
Ironically I should just have looked at the Keyboard Shortcuts dialog (System -> Preferences --> Keyboard Shortcuts).  Listed under the Window Management category, the action Hide all normal windows and set focus to the desktop: Mod4+D.  On my Dell D610 Mod4 is the Windows key.


Also by looking at Keyboard Shortcuts I've added several other shortcuts to my repertoire.


Here's the URL that finally tipped my off:
http://www.linuxquestions.org/questions/linux-software-2/about-the-show-desktop-button-in-gnome-447443/

Cygwin clear command: Ctrl+L

Since I keep forgetting it, I'm posting it: Ctrl+L replaces the clear command when you're using Cygwin.


http://hafizpariabi.blogspot.com/2008/02/no-clear-command-in-cygwin-default.html for more (including alternatives like installing ncurses).