We keep 4-5 filled propane bottles in the garage at all times.
Water is mega important. If the tap goes off and you don’t have a well you will be drinking roof runoff and if you don’t have a good gravity water filter you will get very sick. We have three 55 gallon blue water barrels filled in our garage Plus a Big Berkey water filter and a homemade back up water filter from a kit you can buy on line and hook it all up to two 5 gallon food grade buckets from Lowes.
We also have a rocket stove that can be placed in the fireplace and can be used to cook so the neighbors don’t know you are cooking. Again you can make a rocket stove yourself out of a #10 can and a vegetable can with a little quickcrete and some vermiculite. Very simple to assemble. Mr. GG2 has made a water filter kit and a rocket stove for everyone in our family. Its not costly.
Go to the health food store and get a couple of bottles of 250 ppm colloidal silver to keep on hand and a small bottle of oil of oregano. If something bad happens you will likely not be able to get antibiotics. Both of these are anti viral. Mr. GG2 has built a silver generator so he strong antimicrobials and the oil of oregano is also an makes it for us now.
Canned food lasts a long time. Rice, beans and pasta from the store last a long time. Packets of Idahoan mashed potatoes and packaged soup mixes last a long time. It does not have to be freeze dried. Peanut butter has a lot of fat and is very nutritional. It lasts a long time. Honey never goes bad.
I’d love to see the plans for his rocket stove, if you have a link. There’s been quite a few great designs for them and I’m always interested in seeing more.
It’s easy to forget that you probably have 25 or 30 gallons of spare water in your water heater, too.