Same as many others - WH Smiths. Though i do like the staff, so it would be a shame if it closed and they lost their jobs. That said, I don't buy much from there these days, I'm more inclined to be using the post office dept, than Smiths retail section, which seems very poor now, compared to when I was a kid. For instance, as kids, we'd buy those little mini printers for bobbins, you got strips of plastic with a sticky side, put it in your little machine and you'd type your name on it for school books and stuff. They were fun. The nearest they had to that last time i looked was very expensive by comparison.
The last thing I looked for was a pair of stamp collection tweezers. They used to come in a little set with hinges and stuff, again for bobbins but they had nothing at all like that now that I could see.
As for books, I can often get what i want cheaper elsewhere.
The hospital branch is overpriced to the point of not only having your eyes out but having the cheek to come back for the sockets as well.
Anyhoo, other nominees...
TKMaxx - it always just seems like a very expensive jumble sale to me.
Collectables - Do people really buy so many Yankee Candles and salt lamps?
Timpsons - I can't remember the last time I heard someone say that they were going to get their shoes heeled and soled and keys can be cut cheaper elsewhere.
A few people have mentioned that their nearest branch of Shoezone had shut down, perhaps they've closed for a refit, ours did and has since reopened. If not, you could maybe try their online shop?
HMV's longevity could be due to it having learned how to roll with the punches and evolve when necessary? When i was a kid, it was all records, sheet music and musical instruments, completely different to now.