Does this sound fair re: stepdaughters?

Let them keep all their clothes at their mum's house and bring with them whatever they want on the weekends they are with you. Houses don't need clothes, people need them and they want their favourite clothes to be accessible.

We had major issues when my SS was younger with this. He would arrive to us midweek in school uniform and gone back to his mums house on a Sunday wearing normal clothes. We would wash, dry, iron and return the uniform but the clothes we bought were never returned and every few weeks we'd get a big bag of cut up, stained non wearable clothes back.

Eventually it unfortunately had to be written into the C/O that mum had to send clothes in his backpack. Not ideal but we were able to show the courts that we were spending money every month on an entire wardrobe for him whilst DH was also paying maintenence.

We then moved to a to school from school schedule and whilst we definitely lost out on a few outfits during non term time, we just made sure anything super expensive didn't go over there.

We've actually just spent 2 weeks trying to get clothing back (we can count 6 outfits all costing approx £100 each that she has while we sit with a half empty wardrobe). So far she's sent back one jumper. We have reminded my now 14yo SS to bring stuff back and again he looks at us stupid. We have no issues with clothes going over and back from each house but we are struggling when we buy something brand now and then he arrives in uniform and goes back to her (e.g. bank holidays or non school days) in said brand new clothes and when she does eventually send it back it's been cut with scissors 🙄

We sat SS down last week and explained that if he doesn't bring clothes back, he will have to wear his school uniform back to her house during the Easter Holidays. And unfortunately we will need to stick to it.

I’m sorry but I cannot imagine what it must be like to be children and have to deal with this nonsense.
I have an ex, and my girls have two houses and I have absolutely no idea who bought which clothes and where each item of clothing is of our children.

Most girls their age are becoming self conscious of how they look. I’m surprised at their ages that their clothes are getting so stained and torn. I wonder what’s really going on?

My brother has a similar situation with his ex. She always dresses their daughter in old/small/inappropriate clothes. They do the clothes belongs to that house type rule, so as soon as my niece is with her mum she changes and then puts on the outfit she wore when she is returned.
It's rubbish but like yourself, my brother was buying clothes all the time which would go to mums never to be seen again (plus niece also said that her mum's boyfriends girls were wearing it!).

This sounds the best idea. My step siblings who lived with us on weekends kept all their clothes at their main home and brought bags every weekend it worked well.

I don't see why they can't go home in the outfits they arrived in.

But either way, they're both old enough to pack themselves a little bag with what they want to wear that weekend, and take it back home with them.

They aren’t your clothes though, are they? They are given to step daughters to wear! This sounds odd to me. It almost sounds like you think you own the clothes and dc are wearing them and ruining them. Now they are older, why don’t they just pack a bag for the weekend? Then you might keep a few spares at your house (rain jacket, underwear and boots maybe?) for activities they hadn’t expected or unexpected weather. It’s only a few days! I think their clothes are their clothes and you give without reservation.

This sounds silly. You should have enough clothes and not be reliant on the ‘house’ clothes being returned. They come in one outfit, they wear what they wear over the weekend then go back in whatever they are wearing that day. Of course a supply of pjs, socks knickers etc should be at dads house. I had two stepsons and the only thing was getting the uniform washed and dried in time for Monday morning. They didn’t bring a bag of clothes, they were enough clothes here.

My DD used to do EOW at her dads. As she got older and more selective with her clothes it worked best that she would have pjs at her dads only and the rest of the clothes were from her main home with me. She would then pack what she wanted and everything, including washing, came home with her.
it made her feel more in control of what she wanted to wear and stopped the issues of what belongs where.

I think your suggestion is long over due. I'd hate to think that my own clothes weren't actually mine, but were like a sort of uniform on loan for the house I was in. Sensible to keep spare basics as well until they get used to the responsibility of packing.

How could clothes belong to a house? That's mad. What do they travel in at the start and end of a weekend?