Welcome Aboard, Kristin!
I'm so glad you decided to let Disney take care of the details, and you've booked Disney Cruise Line's ground transfers back to the airport after your cruise. It's hard to have a fabulous vacation come to an end, but Disney makes it as stress-free as they can for their guests.
I definitely recommend using the complimentary service of Onboard Airline Check-In. Guests will receive a letter in their stateroom with instructions regarding what time to have their bags packed and ready outside their stateroom door on the night before they disembark. You'll be issued special valet tags for your bags, and your boarding passes will be delivered to your stateroom. Your bags will be taken from your stateroom, and you won't see your checked bags again until you reach your home airport. Easy-peasy!
Make sure to keep important travel documents, medications, etc. with you, and not in your checked bags. And don't forget to keep an outfit to travel in - you'd hate to have to show up at the airport in your Mickey Mouse pajamas!
It looks like you'll be onboard to enjoy Disney Cruise Line's
Very Merrytime holiday event. Here's wishing you some extra special holiday cheer on your vacation! Please let us know if we can be of any more help as you plan. - Diane W.