I wear a thin jacket/shirt with inside deep side pockets. I don't bother with a purse. I haven't been to a big quilt show that didn't have water available. Water bottles are heavy in a bag. Usually taking pictures is forbidden at vendor booths. Bring a sheet of address labels. That will save you so much time. I had address labels printed with my email and phone # along with my address for signing up at vendors and for prize give aways.