Oh, the things the dollar bill—or $5 or $10—in your wallet has seen. According to a recent report in Scientific American, there are more than a few gross substances that could be living on your cash. (Red alert: Since lower bills are circulated more frequently, it puts them at a higher risk for germs.) Here, 11 things to watch out for…and a reason to make a special trip to scrub your hands.
1. E.Coli. You know, the kind that causes you to hit the bathroom multiple times.
2. Cocaine. From a banker’s nose to your hands.