Boswells in Oxford. A proper independent department store, especially good for linens, cookware and toys. I visited Oxford earlier this year and was dismayed to find it was gone.
A suburb of Bristol had Miltons, selling everything a child wanted, books, toys, stationery, art and craft supplies. I took DS to Bristol when he was about 10, promising new Lego and it had gone. I nearly cried, it was my favourite shop as a child, the place to spend my pocket money.
Also Woolworths and BHS. I still have two BHS nighties, no idea what I will do when they wear out.