your cell phone is 18 times dirtier than a toilet handle

To make things even worse, a test of eight cell phones conducted by the Wall Street Journal found anywhere from 2,700 and 4,200 units of coliforms
—a bacteria that often indicates fecal contamination—on the devices. To put that number in perspective, drinking water must have no more than 1 coliform per 100 milliliters of water to comply with federal standards.
Most cell phone makers recommend using a microfiber cloth to clean your phone, and while that may wipe away oily smudges, it's not eliminating any bacteria. These cloths are great at getting rid of fingerprints, though, and a Q-tip can also be a handy tool for cleaning crumbs out of small crevices.
Just can't live with the idea of thousands of bacteria clinging to your iPhone? Isopropyl alcohol—also known as rubbing alcohol—is the most effective, removing 99 percent of bacteria. To clean your phone with this method, moisten a cloth with a solution of 60 percent water to 40 percent alcohol and wipe your electronics all over. A mixture of 50 percent distilled white vinegar and 50 percent water can also do the trick.
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