We have a rental car so go to Walmart to get snacks and such. We've also packed certain things and flown them down (we fly southwest which has a generous baggage allowance and we fill the snack space up with souvenirs and outlet shopping purchases). Our favorites are rice Krispy treats, single serve packs of peanuts, fruit loops, and clementines. We usually order two counter service and share- we are a party of three. We also eat offsite a few times.