I have taken my ideas for barter from history. There were many traders that worked with Natives here in North America. I will NOT trade away alcohol, food, medicine, weapons or ammunition. I have a few skills, but mostly I am looking at sundries- thread, needles, disposable razors, nail clippers, clothing/fabric, tarps, mirrors, old camp pots, soap, boot laces, etc.

Keep the customers at a distance and trust no new folks.

Of course, this is all a TEOTWAWKI situation.