Wee bottle - with a lady part bit too. Make sure you get a litre one. We actually have 2!
In tent footwear - so it doesn't end up like a swamp.
Wetwipes - depending if camping is going to be a hobby, easy way to wash your face.
Antibacterial wipes - again if camping as a hobby, easiest way to clean plates. Some people go for disposable stuff, it's not really friendly to the environment.
Thick fleece blanket - in case it gets cold.
Decent camping stove - nothing more lush than a cooked breakfast in the outdoors. You can also pre make stuff to heat.
Cool box - I think there's some with batteries, or you can charge them, so you can keep stuff cool.
Ultimate luxury - inflatable tent, as you don't need poles etc, literally manually pump it up and it's just magic.
Ooh from last camping experience, emergency waterproofs.
I know some of these are a luxury, I could go on, it depends on weather you're camping twice a year, or as much as possible.