Has anyone ever checked an empty cooler through as luggage when flying to Disney? We're flying down and will be staying for 9 nights at the Wilderness Lodge. I would rather not pay $10.00/ day to rent a refrigerator if a cooler would do just as well. Also, I wouldn't bother with the cooler if I knew for certain that I would be able to buy a styrofoam one on our grocery stop, but am worried that the store might be out of them. I am going to check our airline's rules on luggage, but I wondered if any of you had done this before. Thanks.