3. Condiment Dispensers
It's the rare eatery that regularly cleans its condiment containers. And the reality is that many people don't wash their hands before eating, says Kelly Reynolds, Ph.D., a germs specialist and public health professor at the University of Arizona. So while you may be diligent, the guy who poured the ketchup before you may not have been, which means his germs are now on your fingers — and your fries. Squirt hand sanitizer on the outside of the condiment bottle or use a disinfectant wipe before you grab it.