Most of us have cupholders in our cars and some of us on our furniture. Regular cleaning helps, but somehow they don’t look clean! Crumbs and grime happen continuously. The easiest way to keep yours clean regularly is to slip a clean sock over the bottom of a cup that fits into the holder. Now spray with your favorite cleaner. Put the sock-covered cup into the holder and twist and turn while pressing down. All the grime and crumbs will cling to the damp cloth and the cupholder will be spotless.