>>865295Food and water in amounts that are appropriate for how long you plan on camping.
Extra water, even if you don't feel like hiking with it, leave it in your car. Same with a bit of extra food, a jar or peanut butter or nuts, something that doesn't melt (if you care about that) that also has protein.
Do you want to start a fire? How big of a fire? Will there be wood? Are you somewhere that allows you to harvest wood for a fire? I always start a fire when I camp but then again, I tend to bring things that I can cook over a fire. I like to try to fish when I'm in an area for it but I usually still have something like meat or at least hot dogs to cook.
Bring a trashbag or at least a plastic grocery bag to throw trash away. Please don't leave your garbage in our nice outdoors.
I always take at least a multitool out with me for hiking and camping. You don't necessarily need a super good knife. If you plan on collecting wood for a fire, bring a hatchet or saw.
Are you somewhere with dangerous wildlife? If so, bring bear spray.
