You will need to pack all of the loose stuff and items on the shelves in the closets but not the items on hangers. On turnaround day the room stewards will move you hanging items and the packed items. You will need to get your new ship cards from guest services. If this is in a US port you will need to go through the CBP check and the crew will move you stuff during that time. You will need to get you new ship card before getting off for the CBP check as you will need it to get back on the ship.