I am just a single persom, and have been micro stockpiling a surplus 5lb bag of rice, 6 or so cans of refried beans, about 10 or so cans of soup, 24 instant ramen packs...

... each month, since I think March.

Plan to keep doing so as long as I can, and then start literally eating into it when shit gets insane, only buying bits of protein and veggies to throw into the rice cooker/stew pot.

Fucking Great Depression 2.0, this time with live streaming rofl, at least until our infrastructure starts also completely crapping out.

Might be worth it to stock up on some duct tape, get a basic set of home repair tools and a basic medkit if you don't already have one, also maybe a water purifier straw, sewing kit and patches...

...and if you can swing it, some kind of backup battery that can be charged via either wall outlet or solar panels, in the event of grid outage and you still want to keep a mini fridge going or at least have some access to AC vs none.

Also, get a mylar blanket. If you lose power, those things can be taped up to a window to help bounce more heat away from them and keep the heat down... or used as an actual heat retaining blanket when its super cold.