Tent, 2 sleeping mats, 2 sleeping bags, water bottle, torch, bin bags, spare batteries
Toothbrushes, toothpaste, bog roll, soap, towels, pills (contraceptive, ADs, antihistamines), suncream, plasters, germolene, ibuprofen, antacids, wetwipes?
Money, one debit card each and cancellation details, train tickets and glasto tickets, mobiles, handbag thing
Clothes: undies, shorts, tshirts, several somethings warm, waterproofs, sunglasses, DMs, nightwear
Book, notebook, pen, disposable camera(s)
Anything (else) really stupid I've forgotten? (I don't really do sunhats, and I don't want to carry too much in the way of food since I don't have enormous rucksack of doom)