This May Be the Filthiest Thing in Your Home--And You Never Clean It

You wash your hands when you leave the restroom, and maybe even reach for a paper towel to open the door handle to keep bathroom germs off your hands. You wash your face with skincare products that cost more than the food you eat, and maybe even sleep on fresh pillowcases every night to keep spots off your face. But all of that is for naught--like going to the gym everyday on a diet of donuts--if you're not taking care of the filth on your cell phone.