Our world is full of dirt and bacteria. Apparently, so are our steering wheels, keyboards, and belly buttons.

I currently cover pop culture and trending news here at BuzzFeed.

Note: These tips came from people on the internet, so take them with a grain of salt.

“One thing I learned the hard way is to go GENTLY. You can make your tongue bleed if you scrape too hard.”

“This is also a key tool when I’m sick! It helps so much when you’re in that phase where you feel like you can’t cough something up. That mucus is just stuck. A tongue scraper can get really far back. You will be surprised by how much you can scrape up…like pure green mucus gunk. It’s disgusting, but it works great. Of course, you might wanna replace it once you’re getting better.”

“Your computer keyboard, too! Especially if you eat or smoke while using the computer.”

“Witch hazel, too. It takes the smell right away and is very gentle.”

Note: Responses have been edited for length/clarity.