Not sure where to post this but it's clothing related so I thought here but feel free to repost elsewhere if it's in the wrong place! Sorry in advance.
DD2 has very helpfully just brought her school skirt down for me to fix, for the 127th time. She's ripped the back split, and I don't know what to do to stop it happening. I've used stronger thread, and that's given way as well now. She needs it for tomorrow, her other one is in the wash. Any ideas please?