M.G.
Craigslist is a great resource to find somewhere to stay overnight. You can search through houston and it would list the surrounding available places or go to Austin craiglist and do the same. I would say Austin or San Antonio. I myself am heading to Kerrville where the scenery is breathtaking and they actually have an art festival and activities for the kids this weekend.... beautiful town. My father in law lives there on a hill and we go to the top and soak in the beauty :) Have fun and be safe...remember, places like New Braunfels will be PACKED with crazy kids....believe me, I was one of them that use to take the day trip there on weekends like this...