As far as food goes- We bring snacks and water, we get those lil packets of kool-aid, to flavor it. Breakfast is eaten in our room, we bring cereal, and buy a quart of milk, or bring parmalat.
IN the park or the eat place in the hotel, we get a double cheeseburger and fries, ask for another bun, they only charge like 69 cents for ir, and you have 2 cheeseburgers and fries!! At the park if your kid will only eat the entree, ask for just that, normally it comes with like a sandwich, grapes and applesauce, tell em just the sandwich, and it takes off like 1.50 of the price!!
Lunch or dinner at the hotel, we order a pizza for like 12 bucks, and we bring soda too. If you are at a dine in place in the world, they alwas have mac and cheese, even if its not on the menu, all you do is ask!!
Thats all i can think of at the moment.