How old are your two kids? Younger people take up less room LOL! I know two cabins or a suite may not be a financial option. Keep in mind they will be in bunk beds. There will be railings. You would have to pack very efficiently. A trick I read and used for our daughter when she went away for camp was to pack her clothes for each day into a separate large ziplock. That way shirts, shorts, socks and unders would be easy to grab and go. Label with each person's name and day of the cruise. Hang up only the nicer dresses/suits. Ziplocks will take up less room and will be easy to store in a drawer or on a shelf. And a behind the door shoe organizer for toiletries as the bathrooms are small. It is doable. Ive never tried but I have been on enough cruises that I know people have made it work, Enjoy