If you have DragThing, you can option click on the Finder icon. It will hide every other program. It's a great way to switch to different programs and unclutter along the way.
You don't need to right click...just command-option click on the desktop, or a Finder window, or the Finder icon in the dock.I use another to minimize the windows...
If any app other than Finder is active/focused, press command + option together, then do mouse right click on anywhere of the desktop. By doing so, I believe every app windows get hidden.