The biggest pitfall of wearing a face mask is your glasses fogging up every time you exhale. While there are a bunch of anti-fog hacks, one doctor has an even simpler one than folding the top of the mask, using a piece of tissue, or coating your lenses with anti-fog spray. It’s a Band-Aid. After you've positioned your face mask, open the Band-Aid and stick the padded side center on the bridge of your nose and push down the sticky side between the top of the mask and your exposed skin. The cotton pad in the bandage prevents some of the irritation around the part of the nose in constant contact with masks and the stick Band-Aid will keep your exhaled breath from escaping over the lenses of your glasses. This trick works on cloth masks as well. There is a potential flaw in this method. Since your glasses are resting on the Band-Aid, they are more likely to slip down our nose. So opt for the Band-Aid with more texture rather than the smooth, plastic types.