Craft fair ideas and lessons learned

So like I said yesterday, my truck broke down on the way to my first craft fair. I think it was a blessing in disguise, it kinda took the pressure off. I didn't like setting up late but it gave me a chance to simplify. I took in the basics and got started.
I learned:
1. Price everything ahead of time. (I knew this but ran out of time so I was pricing some things as I set up.)

2. Have a plan of how to set up your display. I took a couple small metal shelves that I spray bombed white to match each other. I only used one and it worked well to add some height to my booth. I didn't know what to expect but everything turned out ok!

3. Don't forget your business cards, receipt book, seller's permit, pens, paper, chairs, sense of humor, etc. And your smile. A few vendors really looked unhappy and I couldn't help avoiding their tables.

4. I was planning on charging sales tax but I didn't find any other vendor that was. SO I didn't. I did think about making a tax chart so I wouldn't have had to use a calculator.

5. I sell jewelry, prints, cards and vintage items. I used my vintage dishes to display my earrings and it worked well and looked nice. I displayed my prints in a vintage file box.

I met some really great people that I hope to keep in contact with. I'm definitely no pro after this first run but I have a better handle on how I want to display my wares next time. And I definitely want to get out there and do it again.
If anyone has any ideas and lessons learned please share!
ps. I have to get some pics of my awesome craft fair barters and purchases. I'll share as soon as I do!