To think my ex should pack for his holiday?

[Noed]

My ex has booked a 7 day holiday in July which he is taking our 2 DC with him.
I know that he will expect me to pack for them and make sure they have everything they need.
I can't afford a holiday this year so I wasn't planning on buying the DC a summer wardrobe but I'm going to have to for their holiday.
I provide all clothes, toothbrushes, toothpaste etc for their weekends at their Dads and I get the bags dropped back with the dirty washing.
He thinks because he pays maintenance this is reasonable and I should be providing everything they need.

Would love to hear your thoughts on this.

You just provide what you have - many people have to wash clothes on holiday.

I assume you will have some summer clothes for them, 2 outfits you continually wash ?

Then he can do the same

I would send a giant bottle of factor 50 and their own toothbrushes- they can use his tooth paste