Maria,
We just returned from a cruise out of Fort Lauderdale. We stayed at the Courtyard by Marriott Airport and Cruise hotel. We took the Marriott shuttle from the airport to the hotel, and the next morning, we took the shuttle to the port. Very easy. (This is complimentary, by the way)
When we returned, we called National Car Rental, they picked us up in their bus, and took us to their office. We then went to our timeshare for a week. When we returned the car, we were taken back to airport.
Actually, we did this twice, LOL; we had our flight cancelled due to the storm, so we went back to the same Courtyard. We left Tuesday, but on Sunday and Monday, there were a lot of people going to the Port for their cruises.
June