I had a table at my first craft show this past weekend. Didn't do amazingly (the turnout wasn't amazing either, really) but I did turn a profit so there's that.
I also discovered that people are willing to spend odd amounts on odd things. Also, it's totally worth selling off items that you can replace even if you liked them. I'll miss you, snake gloves, but you shall be avenged!
Also also, more minions. Because people love those stupid jellybeans in overalls.
