What problem am I talking about? Foggy mirrors, of course! Every time you step out of a bath or shower, the mirror is covered in condensation, and you have to wipe it clear with your hand or a towel. No one wants streak marks to form on their nice clean mirror, but not everyone is patient enough for it to clear up on its own.
If you are one such person, then the Mirror Cleaner will be the perfect addition to your bathroom. This is quite literally a squeegee with a handle (kind of) on a suction cup. It works the same as the windshield wipers on your car, and it will clear just enough room on the mirror for you to see your squeaky clean face. This is one of those things that was made because it could be, not because it was actually needed. It will cost you close to $20 to get one of these if you are really annoyed by mirror fog.
https://www.youtube.com/watch?v=1QjVNdgwXAo
If your mirror is fogging, then you really need to install a better bathroom exhaust fan. All of that excess moisture is going to cause mold issues.