Quickly View the Desktop

You can quickly and temporarily clear away all of the windows on your Mac and view your Desktop with either the F11 key, or Command+F3. But if you have toggled the function keys, you may need to use the FN key as well. Check in System Preferences, Keyboard, Keyboard Shortcuts, Mission Control and look for Show Desktop to make sure it is enabled. Then you use this function, you can even drag and drop items on the Desktop before using the same keys to return to the windows.