If you are staying in a campground, they will have specific food rules to follow.... follow them! Mostly likely the food rules (store in car, lockers, covered containers...) are for racoons.

If you can light a campfire, you should bring some hotdogs and marshmallows to roast. It's a traditional way to spend the evenings.

Even if you are staying in the campground for the bathroom, you should have a trowell and some TP in your daybag, for unexpected needs.