I know this is months old but you said November and others may check it, I found a good supply list from Jojostory for you:
http://jojostory.net/post/111483193544/the-ultimate-artist-alley-supply-listThey include a lot of the smaller things it's easy to forget. Like binder clips if you're hanging prints, markers, tape, tablecloth, etc Also bring water bottles and some snacks (if I find it hard to get away from my table or want to each cheap for lunch, I often bring myself a kid's lunchable)
And don't forget change! At least enough 1s 5s and 10s to get you by. If you plan to keep doing conventions, it's also worth looking into getting a credit card reader if you have a smart phone through square or paypal.