My OH keeps telling me to stock up on Fritos

I've been seeing stories like these, which are encouraging me to start stocking up for the eventuality of price increases or temporary shortages:
I'm thinking about
shelf stable milk. I think reconstituted powdered milk is gross, but have had some ascetic milk that wasn't bad. Don't remember the brand. Anyone have recommendations for brands and best place to buy for best prices?
I was in south Florida for the dreadful 2005 hurricane season, so I believe in preparing for times when stores are not available, although as time has passed, I've done less stocking up.