but you never know when diarhea will hit little ones. we bought the mega pack(72?) and came home with a bunch and stuck them in the extra duffle bag that i mentioned in my above post.they sold diapers onboard, but they werent as as expensive as i thought they would be. they only had huggies, i think. we are picky with daipers and use luvs, so we were glad we bought them at publix first. hope this helps!