I think my problem is multiplied when I go to Costco, not only is there food, there is also other things (tires? hardware? computers? cameras?) to distract me from my targeted purchasing. Costco can also accommodate the social shopper with the free and copious food samples. If you're a hermit though and can't handle the human contact necessary for the occasional human interaction necessary for grocery shopping, then Costco is completely the place for you.
(As an aside for any readers not familiar with Costco, it's a warehouse store. That's the kind of place where you buy not one roll of toilet paper, or even a package of four. It's where you buy a package of six packages of four. Though the variety is limited, if they have what you want, you can get a LOT of it at one time for a pretty decent price. Oh, and the butcher shop is pretty damn good.)
Enter the 17,586 servings of freeze dried food. With this bad boy (conveniently delivered on a pallet) stored in the basement, you can hunker down and let the world end around you and still be able to enjoy brownies and other tasty treats at the end of your nutritious meals. If you're the type to fly solo, you can possibly avoid all human contact for 16 years, if my math is correct (17,586 servings/3 servings per day = 5,862 days = 16.06 years). You will need to supply the water needed for re-hydration yourself.
The Pallet 'O Food is currently on sale, but you better act fast, as the price ($2,999) is only good until May 20, and who knows? maybe it will sell out.