I am leaving in 4 days (Yea!) and am staying at CBR. I was told that any purchases we make in the parks we can charge to our room. Is this true? Does this include meals, souvenirs, snacks, etc? Can we do this at all of the parks (MGM, AK, MK). It would be so nice not to have to worry about cash, credit cards, travelers checks for every purchase. Thanks!!