It’s a common issue, you get out of a hot shower, dry off, get dressed and look in the mirror only to see it all fogged up. I’ll save you the scientific explanation of why this happens as I trust you already know. Now if only there were a convenient way to rid yourself of this layer of moisture.
Sure, you could wipe your towel across it, but that never works that well. You could plug in the blow dryer, and that would actually work pretty well. However, wouldn’t it be easier to go out to your car, steal one of the windshield wipers and use that on the mirror? No? What if you had a windshield wiper attached to the mirror? That would work quite well.