Getting to the Desktop from an Application in Windows 7

Back in Windows XP and/or Vista, there was a small icon at the bottom of the page that would return you to the desktop from inside an application. It is has gone missing in Windows 7. So how do you quickly get to the desktop in Windows 7?

Let’s say you are in a browser:

There is a small, transparent rectangle on the bottom far right of the screen that will toggle you back and forth between the application (in this case a browser) and the desktop. You can see it more clearly in this image:
Another Windows 7 mystery solved!