I hope you have some business cards to give out to folks. They are pretty cheap to make up yourself or even have printed. Put contact info on it because after the show is over people might decide they want something for a special gift or something. I had some made up when I retired with just some flowers on them and my contact info. Nice to pull one out when you are talking with someone you want to contact, or an old friend, or someone who has questions for you. I don't have a business, but I missed the cards I had when I was working, so it's good to have retirement cards, too.
I love your quilting and your display. Hang in there, and maybe the next show will pay off more. Maybe nearer to the holidays?