I maintain a few cases of MREs — one of the Magnets is an avid camper and likes to pack MREs for some meals, and I do the same on long range days. Generally speaking there’s one open case that the kid or I can root around in, and three unopened cases, at any given time. I’ve been very pleased with the XMRE brand having tried several.

I have two buckets of long-term freeze dried foods, kept in a corner of my home office for temperature regulation.

There’s a stack of cases of bottled water from Costco. It’s a big PITA to rotate stock, but I do that.

Mrs. Magnet maintains a kitchen garden and our pantry is always reasonably well stocked with canned foods, snacks and staples. The Young Magnets aren’t home all the time any more but they eat like locusts on meth when they’re here, so we’re still learning how to shop for that.

Being able to keep at least one room warm is critical — I have an indoor-safe propane space heater and a stash of propane bottles if that was a problem, along with plastic sheeting and duct tape. I’d have to drain the water pipes and we’d be confined to one warm room, but it would be do-able (Mrs. Magnet and I were forced to do this once for several days, before we were wed).

Water is our most limited consumable, we’d be rationing immediately and planning to leave within a couple weeks at most if that became unavailable. We’d have full bellies (if not eating as well as we usually do) for three weeks or more. We could go quite a while without power, natural gas service and motor fuel, if it isn’t very cold.