We always bring snacks for the room and the parks. We eat breakfast in the room and then have lunch and dinner in the parks. We bring snacks in to the parks as well to snack on while in line and hold us over before the next meal.
Some things we bring are:
apples
bananas (I always eat one on my way to the parks)
granola bars
goldfish
easy mac
dried fruit (love the craisins
)
nuts
popcorn
(for those late night snacks!)
individual snack packs of oreos, nutter butters, etc. (ususally try to get them on sale at Publix when they are buy one get one free)
I always bring ziploc baggies so I can divide up some of the snacks between the 3 kids. It makes it easier if everyone always has their own bag (no fighting over who is getting more!!)
Even though we are in the parks until they kick us out, it is nice to have something in the room when we get back just in case someone is hungry (saves on going to the food court so hungry and coming back $20 poorer!!
bottled waters
we always buy the refillable mugs so I can have my morning coffee
(or else I am useless!) I always bring the styrofoam coffee cups to finish my last cup on the way to the parks!!
We drive so we are lucky enough to be able to bring a little more than those that fly. I would buy what your family likes and don't go too overboard!! Have fun!!