We managed to forget to bring soap the first time we went camping (too used to hotel bathrooms! ), and only brought one tube of toothpaste, one bottle of shampoo, etc, forgetting that we would be bathing in different blocks.
Loads of toilet paper - the sort in little boxes is good, as it can be difficult juggling roll, coat and torch (it generally rains if you have to go at night).
Washing line and clothes pegs.
If you have enough room in your tent, then a small clothes-horse is really useful to have somewhere to put dripping coats and wet towels.
If your kids are still drinking milk, then take a bottle of Dettox or some Dettox wipes, as mopping up spilt milk in the tent with a plain cloth may seem clean, but if you don't Dettox it then the next time you unpack the tent it will smell even worse.
small hand towels or tea towels can be used for so many different things - we take a handful
i collect sample size bottles all year round - things like washing up liquid etc. it might be too late to start but you could fill some small pots??
Hats for nighttime. It gets cold at night in a tent even in the summer. Laterns are nice to hang around in the evening. Jars do the job well with tea lights in them and string for handles.
Get a couple of good torches too. It's always a good idea to have cover (fishing umbrella, awning, tarpaulin which can be tied onto things) to increase your outdoor living space if it rains or if the sun is baking hot.
Just to balance, our tent collapsed last Thursday (at midnight, in a gale), and we had an Adventure and the time of our lives!
Make sure you pinpoint location of nearest early-opening caff so you can at least be assured of a hot cup of tea and a bacon sandwich.
(Did we really nearly blow away, mummy? Would we have blown all the way home? Would it have been like in the Wizard of Oz with the chickens? Would we have landed in Oz, mummy?)
dp was in the first week of the Atkins at the time. So no sense of humour. And we were ttc, so had to "do it" after our row, in foul tempers, hating each other, with a soaking bit of tent slapping around our nethers
Our first time out we were allocated a lovely spot right on the seafront, unfortunately at the time there was a gale force wind & blinding rain. With what felt like the entire site watching us from their warm dry caravans we struggled to stop our tent from flying off. Having been "adopted by someone elses child and with ours totally hysterical in the car we went s*d this and went and got a caravan!!
Having said that we are camping this weekend, in this weather my advice is invest in some of the absorbent cloths to mop down your groundsheet, my brother takes a doormat too (cue much ribbing from me) but actually it helps to wipe your muddy boots on it. Find a sheltered spot not to far & not too close to the loos!!
Still we could have blinding sunshine by the weekend (she says optimistically)