But did you know your chopping board or light switch could be just as filthy?
That's according to a $4 showing 18 everyday objects that have more germs than many of us feel comfortable thinking about.
Turns out, your handbag could have three times more germs than a toilet seat, your money might be coated in up to 200,000 bacteria, and an elevator button could be 40 times dirtier than a toilet seat.
Perhaps even more troubling are the details surrounding things we use to clean ourselves - faucet handles, toothbrushes, towels, and even laundry machines are all on this list.
Of course, just because something has bacteria doesn't mean it will make you sick - it's possible to clean everything on this list.
Keep scrolling to see the full infographic, $4.