Then there's always options during your trip. First, hit up the front desk, so you can at least break it down to 50s and 100s. Second, try the servers, especially later in the day, who will break down further into 10s and 20s. If neither of those work, go out the front door of the resort, cross the street, go to the convenience store (1 min away), buy something small and get all the change you need.
