I save all of the samples I get all year from the freebies board to use when camping ...if we camp in a state park and dont have a full hookup, they boys shower in the bath houses, and the samples come in handy (use then toss)...pack some extra tarps and cord, just in case it rains, you will be able to set up a tarp so you can play cards and eat etc at the table. also, it does not hurt to keep some firewood in the car if it is calling for rain. (all of this is assuming you are tent camping) also, keep food and coolers locked in bear boxes or in the car to prevent the animals being attracted, and destroying your food (we once had a bear drink an entire cooler of beer. Teeth marks in each can. he passed the diet coke by) it is common for skunks and other animals to scavenge the campsite for dropped goodies after you go to sleep so dont freak out, they will leave you alone.
Once we were camping in our rv, on Lake Ontario, and I heard a noise (windows were open, not hot enough for air conditioning)...I turned on the outside light and peeked out..,.there was a fluffy skunk eating some goodie I had thorwn away (and not taken the trash to the dumpster). I whispered "scat" and flashed lights, but then realized what a stupid thing I was doing....the trash was already torn up, and needed to be cleaned up anyway, but what exactly would I do if the shunk sprayed the camper. I decided to let him have his snack.