Learn to make the stuff.
Start with brewing beer / wine / etc.
Then work onto spirits and fortified wines / etc.
There's a few people about here that can help you out with the first- I can give you a pretty good run down on how to do the second.
Makeup, lots and lots of the cheap stuff to barter with, Pocket knives, a few dozen all bought at the dollar store.
Toilet paper, bar soap, those small bottles of tooth paste and tooth brushes for travelers in the bins at the dollar store.
Most stuff can be bought at the dollar stores and traded for something you need.
Got a small apartment ?? Head for Goodwill and plunk down $15.00, for an old steamer trunk. Throw out the coffee table and fill the trunk up and use in place of the useless coffee table. In an evacuation time the trunk can be thrown in the car trunk or back seat of a car. May be a good idea to head for Wallmart and buy those wheels to install under it, until you need to run those wheels will be handy when you vaccum the floor.
Forget all the documents you may need, fill the bottom of the trunk with the family photo's, these one can never get back---documents yes but photo's of family, never.
All the food one stores is good only if you stay in one place. If you want to barter booze then I advise you do as the kids did in the 1980's. Make up a bunch of vaccum seal bags big enough to hold 2 shots of hard liquor and seal it. The bags will be around 2 inches wide and 4-5 inches tall. One can carry a half dozen in each boot, pocket or hell wrap them around your body. No metal detector will pick the bags up and each can be sold for for what ever the asking price is.