If you're the type of person who refuses to borrow earbuds, here's your vindication. A recent study found that earbuds can harbor 119,186 colony-forming units.
Thankfully, you can cleanquickly to get rid of any unwanted passengers.
A wipe will do it
To sanitize your earbuds, wipe them down after each use with a rubbing alcohol wipe. You can find them in the first aid section of the grocery store in single use packs.
Don't forget the details
Be sure to pay attention to the holes in each bud, too. If you see any earwax in the holes, use a toothpick to wedge it out. Then, cover the end of a toothpick with an alcohol wipe and carefully swab out each hole.
Make sure to let the earbuds dry completely before you store them or wear them. Since alcohol dries quickly, you shouldn't need to wait more than 60 seconds.