For a polished look, consider updating your user account picture as well. Go to System Settings > Users & Groups, click your ...

You may use the Mac OS X feature in the Desktop preferences to have your desktop images set to change every N minutes in random order. Sometimes the desktop will display an image that displayed ...

You can change nearly any desktop icon on both Mac and PC. To change desktop icons on a Mac, open the "Get Info" menu and paste in the picture you want to use. On a PC you'll need to make a .ICO file, ...