I agree, bring back the beach towel. I only have one of those and it is something we could use more of. At this point I have more DCL bags and cups than I could ever use. I almost left my cups in our room when we left Saturday only because I have no more room in my cabinets for them and we really don't use them.
In reading these replies I like the free wifi option, H2O products to take home, free beverage, or a gift shop credit. These are all things I would actually use. Even a rice krispie treat would be worth more to me than another bag.