I always keep 10-20 lbs of rice (Sam's club, Uncle Ben's brand, 10lb bag) on hand.
10lbs of dry Beans, mostly Pinto's.
6-12 lbs of Pasta
Canned stuff like Ragu, Tuna, veggies and fruit get stockpiled when on sale, and cycled through.
New stuff at the back, oldest at the front.
Freezer is also full.
I should buy a big bag of flour and repackage with food saver to remove air.
If we ever really need it, its the fresh stuff we'll miss, eggs, milk, produce, fruit.
Shelves in the basement are also full of home canned meat, veggies, and jam's, jellies.
Call me old fashioned, but I've seen power go out in places for 3 weeks.
With my natural gas kitchen stove and a small ice fishing wood stove in the basement I have heated this house in mid winter for up to 5 days with no power. Keeps us warm enough to be happy, and puts food on the table even when the powers out.
I suppose if I was smart I'd freeze a couple of gallons of milk. Would probably last a long time that way.