Telegraph: ‘I used to swap my wardrobe religiously, but I haven’t done it at all this winter," says Gill Christophers, the PR director of Claridge’s hotel, and a fanatical follower of fashion. "I’ve continued wearing dresses and medium-weight coats. When I was growing up in Devon, we used to watch the weather and plan what to wear. Now it just seems like the same old same old." For many, hauling seasonal clothes out of storage was a twice-yearly ritual; now it is unnecessary. And …