I've put this in SN as I think it applies to SN kids a bit more than others although I'm sure its something that drives all of us mad! SN kids are more likely to have toilet accidents, rush into a puddle, maybe can't tell you what's happened to that lovely pair of Boden trousers etc.
Anyway, I have a real struggle making sure that DS has enough REASONABLY NICE spare clothes at school. Many times I KNOW he has stuff there but he has come home in someone else's vile clobber that is too hot/small/big/dirty etc! I put his name in all of his clothes so no-one could mistake them for someone else's. I don't begrudge another child borrowing his clothes if they need them and they haven't got any but I don't then expect him to come home in something horrid and unsuitable. At the moment I'm keeping a big form where I write in what I've sent in and when it came back. It works OK as I can monitor (as long as I remember to do it) but it doesn't help me KNOW where his clothes actually are at school iyswim.
I don't want the staff to have to pay too much attention to this as its sort-of trivia but I do want to suggest a way we can organise things and I'm happy to check the supply etc.
Any ideas/advice?