Hi all! Trying to work out transport and wondering if anyone has any ideas!
The plan: Fly to MCO on 1/18 and go to DIsney for 3 nights. On 1/21, head to Port Canaveral for a non-Disney cruise out of Port Canaveral. It was suggested to me to rent a car from either Budget or Avis at MCO and driving to the ship, dropping it off at Cocoa Beach. I would then need one for back to MCO.
I know this is more than just Disney, but any help would be awesome. I don't need a car for Disney, so I was thinking, we could use ME to and from resort and airport. Is this right too? Wait, will my luggage not know where to go if we don't get on a plane at MCO.
The plan: Fly to MCO on 1/18 and go to DIsney for 3 nights. On 1/21, head to Port Canaveral for a non-Disney cruise out of Port Canaveral. It was suggested to me to rent a car from either Budget or Avis at MCO and driving to the ship, dropping it off at Cocoa Beach. I would then need one for back to MCO.
I know this is more than just Disney, but any help would be awesome. I don't need a car for Disney, so I was thinking, we could use ME to and from resort and airport. Is this right too? Wait, will my luggage not know where to go if we don't get on a plane at MCO.

So, I think you are suggesting that we take ME from MCO to Disney resort, stay and play at Disney. Then on 1/21 pick up a rental car from property, and drive to port, and drop off. Then, when disembarking, get back to car rental place, rent a car and drive back to MCO. It sounds like there is a shuttle to the port, is there a way to get a shuttle to the rental place and drive back to MCO? 
Thank you so very much for the info, that cleared it up for me!