8. Public restrooms
Public restrooms are a germy HQ for obvious reasons, but the toilet bowl itself is less of a concern than germy faucets and soap dispensers.
Stay healthy: Visit public restrooms with caution. After leaving the stall, use paper towel to dispense soap—25 percent of restroom soap dispensers have fecal bacteria on them—and to turn on the faucet. “When you’re leaving, touch the door handle with another paper towel,” says Malloy.