Make sure you bring your confirmation with you and any other documentation you may be able to use. We used the Emerald Isle, and had the Emerald discount of 25.00 or so, and used the entertainment discount for an additional 15.00 off. It was all printed in black and white on the confirmation, but the slip the check-in guy gave us when we dropped off the car did not have the 25.00 discount on it and therefore the bill did not match the total on the confirmation. Well, into the counter I went, where they informed me that it is not possible to have two discounts, and through much arguing, they ended up calling the manager, where she told me some bull about how you can only get two discounts if you pay for the mileage! Give me a break!! She read the confirmation over and over, and I just stood my ground and insisted that you cannot confirm a rate for a rental and then decided after you bring the car back that you want to charge a higher price.To make a long story short, I finally got them to honor my reservation, but ended up running through Orlando airport with luggage and three kids, because they made us late for our flight. We got on the plane minutes before take off. Please allow extra time for arguing, just in case!