I know there are some people who question whether masks really work in preventing the spread of covid. Yes. Absolutely. Yes they do. I do not speak as a medical authority but an observer. Even if masks are only partially effective in blocking the virus, I've noticed that when you wear one, people stay away from you.
One of my most treasured possessions in NYC was a pair of those "Patient Belongings" plastic bags that you get when you're release from the hospital (street clothes, wallet, slippers, where's my watch?). One night, I left my mother-in-law's apt laden with Chinese food and I-don't-know-what packed into these bags and was bemused, and then extremely amused, then thrilled when I realized that people were avoiding me. A full car, but a seat to myself, seats on either side. I started using them quite a lot. Worked like a charm.
So. masks. Use 'em, people. You'll be astonished at the difference.
To continue with the Job Lot theme. For those of you who are curious about the Job Lot herring run, see reference photo. (Also, if you don't have a mask, people will stay away from you if you eat them for breakfast. I know this for a fact.)