My daughter has a craft apron with pockets. I just fold over the chest part of it so that it is just a waist apron and use that. I had a person rob me at a garage sale by baiting me into getting my fat 8 1/2 months pregnant a$$ up to show her something, and she went right behind me and grabbed out of the register. Yes, she robbed a pregnant lady and had her two children in the car waiting. I don't want to be distracted like that again.
I like it because if I decide to take a break and look at other people's stuff (i always enlist a partner), they won't try to make me try out their stuff, yada yada yada because they can see i am a vendor.
