I thought Everything 5 pounds sold clothes from various more expensive shops from previous seasons that hadn't sold?
Which is better than buying the very very cheap clothes that are poor quality and look like a rag after one or two washes so people throw them away because they were so cheap?
I don't use charity shops because the chances of finding something that fits, I like and need is so close to zero that it's really not worth the effort, but I do try to buy the best quality I can afford and do wear most things that I buy for years so far from disposable fashion.