Dust can make the chips inside your computer run hotter and also clog cooling vents.

At least once a year, unplug your computer, open the case, and blow out the dust. Do not wipe it with a rag; use either your breath or an aerosol can of compressed air.

Your mouse and keyboard will also require occasional cleaning. You can pop off the key caps on your keyboard to get at dirt and hair between the keys.

You can also remove your mouse ball to clean it and the rollers inside the mouse.

Use a commercial spray cleanser applied to a cotton swab to clean your keyboard and mouse.