"Rubbing alcohol is a good bet to kill germs," says Mock, when you need to clean your phone. Here's what she suggests: Fill a small spray bottle with equal parts distilled water and isopropyl alcohol.

If the soap isn’t diluted with water and isopropyl alcohol, it will clog the nozzle. When you’re ready to make your own Dawn Powerwash, you can use either a standard spray bottle or reuse an ...