The sponge is possibly the grossest thing in your house. I say this as someone who regularly comes home from holding a subway pole and immediately eats finger food (it’s builds character!), but still the sponge disgusts me. It is, by nature, a festering cesspool of germs, a wet thing used to clean dirty things that…
Source: LifeHacker – How to Keep Track of Your Gross Household Sponges