Everyone knows about the need for running an anti-spyware, anti-virus, and even an external cleaning periodically (you know the spray air cans, etc.) You can carefully clean the outside surface of your monitor of dust, fingerprints, and such.
Well how are you supposed to clean the inside of your computer screen?
Here's how. It's free and you can do it as often as you notice any smears or smudges that don't seem to be on the outside: