Resolved Question

You forgot to say what kind of camping trip.
Camping in a tent?
Travelling on foot or by bicycle?
Inland or by the sea?
Warm climate, or hot, or cold?

Here's a list based on what I use for cycling near to the sea in a warm (UK) climate:
nylon string! mountain bike. pannier bags. two puncture repair kits. pump. bungees.
tent. rollmat. sleeping bag. head torch. wind-up torch. solar battery charger. batteries. mobile phone (with at least £5 call credit on it).
nylon string! soda bottles for keeping water in. bottle of meths. liquid fuel stove. cutlery set. sponge scourer. a couple of cigarette lighters. fishing line wrapped around a soda bottle. fish hooks of various sizes. bow and arrows (wish I had these). sharp knife made for gutting fish. wire. nylon string!
neoprene booties and gloves. wetsuit. small towel. sunglasses. waterproofs. brimmed hat. warm (beenie) hat. fleece hooded jumper. swimming shorts. t-shirt. button-up shirt. nylon combat pants. trainer socks. well ventilated trainers (sneakers, whatever the heck you call em, running shoes!). chunk of soap in a plastic bag. toothbrush. toothpaste. razors. scissors. toilet paper. anti-bacterial hand-wipes.
milk powder. oatmeal. salt. sugar. solid vegetable fat. strong wheat flour. egg powder. dried herbs. ground pepper. stock cubes. instant noodles.
maybe some 'instant' bread mix.
pipe. cannabis.
£20 in case of an emergency.
don't forget the T.P. and some nylon string.