I didn't read every comment so I don't know if it's been mentioned, but if you have pets, make sure you're also stocking up on their food and supplies. Over the past few months, It's been harder and harder to find the pet food my dogs and cats normally eat. This affects them, too. And supplies like medications, tick/flea prevention, heartworm prevention, etc., might get harder and more expensive to buy, too, although heartworm prevention is mostly just ivermectin if you can spare some of your own in an emergency. My oldest dog is arthritic and diabetic and has to have insulin twice a day, and I've been buying more of his medications than I need and keeping them in the refrigerator, even though it's expensive. I just don't want to be caught empty-handed in the event of more lockdowns, supply chain disasters, blackouts, etc.

TL;DR: Don't forget your furry frens, my frens, while you're prepping for your family.