Packing for Ann Arbor

I am prepping for my trip to Ann Arbor for The Original Ann Arbor Street Art Fair and I am in that stage of nervous excitement. I have never been to Ann Arbor. I believe we should have decent weather for the most part (looks like rain on set up and tear down days which might make things messy). I love to get as much time experiencing the city in before and after the show's hours so that I can say that I visited the city and not just the art fair. Since I will have mostly early morning hours before the festival gets started each day I hope to hit some of the nature areas to hike and also walk around the University of Michigan campus. 

Let me know if you have any other suggestions for places to go!