Help Planning

[mom22girls]

We are going to Disney for 3 nights then getting down to Tampa for a 4 night cruise. Any ideas what would be the best mode of transportation. We don't really need a car while at the disney resort but would probably need to rent a car to get to Tampa. Anyone know if it would be more economical to rent a car for the whole week or 3 nights anyways since we would have to pay for transportation from Airport to Disney then to Tampa. We fly home from Tampa instead of Orlando so don't need to get back to Orlando. Thanks for any tips from all you experienced ones out there.

There are four of us going.