The world can be quite the grimy place, with bacteria and viruses lurking everywhere you turn. So how to protect yourself from a world teaming with germs? Practicing cleanliness is the only way. Perhaps you've already adopted some clean habits such as avoiding touching public restroom door handles, sanitizing your hands after you get cash out at the ATM, or hitting elevator buttons with your elbow to minimize the amount of bacteria with which you come into contact. But did you know that most of the germs you encounter won't be found in public spaces but on some of the most commonly used surfaces in your own home? So what are the grossest spots in the house and, more importantly, how do you clean them? Read on to discover the 10 germiest places at home—some of which you may not suspect.