Germiest thing in the school

I was surprised with the grade shool student's experiment in the school today. Their goal is to find the germiest thing inside the school building. My guess was they will find it at the kid's toilet, coz everytime I accompany some special kids to the toilet I can see how dirty it was, some of the kids does not observe proper cleanliness in using the toilet. But nope, its not, can you guess what it is? The answer might not be what you think. Yes, its far from what I guess, they found it at the library, and it's the library's computer keyboard. They checked also the office computer keyboards and found out they have a lot of bacterias compared to the toilet seat in the kid's bathroom.

How about your home? Can you name the top 5 germiest things? I was right on my guess with this: kitchen sponge or dishrags- I prefer using microfiber dishtowels, I used them once then wash it. Second is the cutting board- I bleach them everytime I wash especially if I cut chicken or any meat. Your kitchen surfaces and faucet handles have a lot of germs too. Use antibacterial products to wipe these. Sink drains are nasty too, with germy biofilms, yucky. And the doorknobs too, I make sure I wipe it everyday with antibacterial agents.