https://www.huffpost.com/entry/how-to-make-face-mask-from-fabric-covid-19_l_5e834a20c5b62dd9f5d628e8

Gives different methods for making masks given that first responders need all the manufactured masks they can get. I'm going shopping for cat food in a few and will wear the scarf since I don't have the materials needed. I will still do my best to stay 6 ft away from anyone, but it's hard in the aisles which are only 3 ft apart.