Cured my stinky feet
Honestly, I have been known as a person with stinky feet since I was a teenager. I almost embraced it. When I got married, some things had to change. I bought a few pair of these at a Farmer's Market. Not only did they last years, but my feet smell fine after a workday and my shoes run out of tread before I trash them instead of having to be disposed of in biohazard bags.