You should always keep your glasses in a case when you're not wearing them. Always take them off with two hands, one hand on each temple (or arm). Never lay your glasses lenses facing down on any surface. For optimal cleaning, always rinse your glasses off with cold water to remove particles that can scratch, then spray your lenses with an eyeglass cleaner, and dry with the Gamer Advantage microfiber cleaning cloth. NEVER use paper towels, your shirt, or napkins to dry or clean your lenses. Never use Windex or other household cleaners. Hairspray can damage the integrity of your lenses, so we suggest taking your glasses off when applying hairspray and waiting for it to fully dry before your lenses come into contact with your hair.