A list coppied from UK campsite!
In actual fact you don't need all of this, and some can be your own kitchen stuff IYSWIM
Unless you are a roughty, toughty type get a tent which sleeps twice the number of people actually going....so for 4 get an 8 berth tent....at minimum a 6 berth. Get a hydrstatic head (waterproofness) of at least 3000 mm for UK/continental use.
Get good sleeping stuff, nothing worse than being cold/uncomfortable. The rest you can scrimp on, and buy over time
Bags - Tent bag, plastic bags, etc.
Cardboard boxes if needed
Ice Chests
ICE! Ice Packs
Bucket
Lighting - Check batteries!
Gas lantern (these are superb)
Lighter (as in cigarette)
Matches (preferably water proof)
Spare batteries and bulbs
Spare lantern fuel and mantles
Shelter/Bedding
TENT!!
Sleeping bag
Duvet (if you've got room!)
Ground Sheet
Mattress or pad - Inflator for air mattress
Pillow
Windbreak
Hammer to sink tent pegs
Medical
Suntan Lotion (ever optimistic!)
Insect Repellent - Spray
Aspirin, Paracetemal etc
Tweezers for splinters and ticks
Antiseptic, plasters and bandages
First Aid Kit (may include all the above items)
Pocket Tissues
Cleaning and Personal Items
Soap
Flannel
Shampoo
Toothpaste and toothbrush
Comb/hair brush/clips/bands
Make-up bag
Razor and shaving cream
Towel
Deoderant
Toilet Paper (essential)
Miscellaneous
Swiss Army knife
Compass and Map
Safety pins
Mobile phone / extra battery and car adapter
Camera / good battery and extra film
Camcorder / good battery and extra tapes
Books, radio, cards, games, toys, etc.
MONEY, credit card, etc
Guitar
Bike ?
Binoculars
Chairs
Travel Clock
Clothesline and pegs
Basic tools (screwdrivers, pliers, etc.)
Maps!
Cooking
Stove with fuel and lighter
Newspapers for lighting a campfire
Charcoal and Grill for BBQ
Frying Pan
Sauce pan - ; With lid
Can opener
Thermos flask?
Corkscrew / Bottleopener
Dishes
Plates
Mugs
Sharp knife
Knives, Forks, Spoons and Teaspoons
Dish Cloth
Tea Towel
Washing Up Liquid
Consumables
Paper towels
Rubbish bags
Paper plates, cups, bowls, etc.
Plastic knives, forks, spoons
Aluminum Foil
Food and Drink
We bought our tent last year and it has already paid for itself.
I have just booked 5 days in N Wales for us at Whitsun