Congratulations,and to be cruising New Years Eve is such fun. If your grandson,is younger, cruising at this time, on this ship, there will be plenty of kids.
Bring a power strip for everyone's electronics, a garbage bag, to act as a laundry bag, for soiled clothes, in the closet, and, you can pick up an inexpensive over the door shoe bag, to see everything at a glance...sun tan lotions jewelry,meds, perfume, things like this, to keep the small desk area clean of whatever. Bring a hilighter to make sure you don;t miss a thing, form the daily activity sheet, you will get daily, in your cabin.
Try the Pinnacle Grille, delicious...What ports are you doing? If you go to Half Moon Cay...you will have a splendid day there.
Lots more hints to come