lots of good info in this thread so far.
IMHO, the other stuff to think about is: Good alcohol, for trading medical and just to relax.
Precious metals, gold and silver, trading and purchasing goods.
Herbs and spices, they can make a turd taste good.
Copies of ALL important documents on a flash drive and maybe even a couple hard copies on waterproof paper.
AMMO, AMMO and more AMMO, used when you have to get ugly to support and feed your family. Can also be used for trading.

I am no where near ready, but my health would prevent me from doing anything outside my home.

HTH
Roger