Your computer, printer, fax machine, and other home office gear will work better if you keep them clean and dust-free. Before you start cleaning, make sure that all your equipment is shut off. Now mix equal parts white vinegar and water in a bucket. Dampen a clean cloth in the solution—never use a spray bottle; you don’t want to get liquid on the circuits inside—then squeeze it out as hard as you can, and start wiping. Use cotton swabs to get in tight spaces (like around the keys of your keyboard). Here are 7 reasons cleaning your computer keyboard is more important than you thought. If you have a mouse with a removable tracking ball, use a 50/50 vinegar-water solution to clean it. First, remove the ball from underneath the mouse by twisting off the cover over it. Use a cloth, dampened with the solution and wrung out, to wipe the ball clean and to remove fingerprints and dirt from the mouse itself. Then use a moistened cotton swab to clean out the gunk and debris from inside the ball chamber (let it dry a couple of hours before reinserting the ball). Has the budding young artist in your home just decorated a painted wall in your home with a ballpoint original or scribbled...