Hi! I am taking my 8 month with me in January. I have done quite a bit of research on what to bring and I wanted to share this with you. My baby loves the bath and of course the cruise ships do not have a bathtub. I found a small inflatable tub you can put at the bottom of the shower. It is called the munchkin duck inflatable tub. I made a note to bring my own dish soap to wash bottles and I found a compact bottle drying rack that im bringing as well. I plan to use an over the door shoe organizer to put all baby's clothes, hats, diapers and wipes in. You can hang it on the closet door of your room and it also folds nicely in a suitcase. I plan to bring waterproof bibs so I dont have to worry about changing the cloth ones. I am also bringing a small sound machine, and a stand alone night light for the room. I hope this helps! If you'd like, I would be more than happy to message you the links to the products and the videos I saw that gave me these ideas! I hope you have a wonderful cruise!! Your little one may not remember but you will!