"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.

Most households have a bottle of rubbing alcohol (isopropyl alcohol ... Clean the feet of your computer’s mouse by applying a small bit of rubbing alcohol to them is another of these hacks ...

Isopropyl alcohol should be disposed of according to local regulations ... Describe the testing procedure and have students combine a small amount of each of the yellow liquids with blue water.