How gross is your ... MONEY?
Think about every kind of germ you come in contact with in a given day — from the bathroom to the bus. Just about every one of them can be found in your wallet. A 2017 study of cash found viruses, bacteria and funghi typically found on skin, in mouths and even in vaginas all mingling on the bills along with human and pet DNA. In fact, if you could see all the organisms living on there, you might just choose credit over cash — or at least wash your hands after paying.