Twiggy: “As a general great store, it’s got to be Selfridges because you can get everything there. You can go in the morning and stay there all day, couldn’t you? Well, I could. You can shop, then you can eat, then shop, then have coffee and cakes. I think the first time I’d have gone is with my mum as a kid. I grew up in north-west London, so to go up to the West End was a treat.”