Most of us still have the pandemic quarantine fresh in our mind. What if the next pandemic is something deadly, like airborne ebola? You may need several months of food. 200 lbs of beans, 300 lbs of rice, 160 lbs of sugar, 300 lbs of corn flour, etc.. All vacuum sealed in 5 lb mylar bags with oxygen and moisture scavenging packs, stored inside sealed steel garbage cans to keep out the rodents. The bags are numbered. Certain bags contain poisonous substances, and should not be eaten. So if they're taken by force, karma will be a bitch.

Don't wait. I got everything for under $500 by purchasing wholesale from overstock warehouses. Had to dip into it once a few years back when we were snowed in for two weeks, so it's not just for the zombie apocalypse. Stay away from canned goods unless you're very good at rotating inventory. Most only have a two year shelf life before the flavor will go "off". If they do spoil and you eat them, there might not be any medical services.

Speaking of medical, hit up your local feed store for some antibiotics. They're much cheaper than the human variety and don't require a prescription. Print out what each is good for and required dosage. They'll last for several years past the expiration date if you keep them in a cool place. A triage kit is another essential, and learn how to use it.

Finally, learn what edible plants grow in your area. You may be surprised at how many "weeds" can be eaten. They can help round out your diet.