I do plan to put out a piece of paper "Cash only. Exact change only." I'm not there to be a banker, I'll tell somebody to go buy a hot-dog if need be to get proper change.
I thought gunshow hotdogs were up to $20...not much good for change...
JK...
If you sell full cartridges under a dollar each you will probably do well on volume and reduce the browsers/not buyers..
I haven't seen much jerky at shows lately.
Good luck..