By the way, I don't bring a cup, I order what I want. I'm on vacation. I'm not going to bother with keeping up with the cup or washing it out or carrying a case of water. I like having the guys with trays by the pool and the waiters/waitresses at the casino and elsewhere wait on me on vacation. It's just worth the cost for me a couple of times a year to not worry about the cost and just enjoy being served whatever/wherever I want. That's just me.