mufti day

My son doesn't have problems with this in his school as he loves wearing character based clothes (e.g. gruffalo) so he is happy to substitute those for his school uniform.

I struggle in work though - once a month we have a dress down day for charity and I always struggle to pitch what i'm supposed to wear.  I keep completely separate work and home wardrobes and some of the things I wear at home are not appropriate for work (e.g. low cut tops, scruffy looking jeans).  I find myself thinking about it a lot in advance.  Over the last few months I have come up with my own "non uniform day" uniform, i.e an outfit or two which isn't business wear but is still quite formal and "safe" from a professional standpoint. 

Maybe you could design a non uniform "uniform" for your child so they know in advance what they will wear in this situation?

Yes. Absolutely.

In fact, when they were told they could go in wearing PE kit for inter-house sports day, my younger daughter couldn't cope and went in her normal uniform.

We've had all sorts of traumas about non-uniform days over the years and it never seems to get any better. My older daughter is in sixth form and their head told them, out of the blue, today that they don't need to wear business dress tomorrow. She's spent all evening wondering out loud what she should wear. The jacket and trousers wold be so much easier! 

I've never heard of it.  I can understand why your youngest would get anxious though.

I think schools don't take needs of autistic children into account when there are such days.