Jess Cartner-Morley on fashion: this season’s big idea? Wear a skirt. It’s that simple

All you need to look on-trend this autumn is a skirt, but instead of going shopping, check what you already have in your wardrobe I go to a lot of fashion shows, and sometimes they are gorgeous and sometimes they are ugly. Sometimes they are electrifying and sometimes they are deathly dull. Sometimes they are completely baffling. My absolute favourite kind of show is the one that makes me want to run home and change my outfit.

A show that makes me think: there it is! That’s exactly what I want to wear. When the look speaks to me, as if it had been on the tip of my tongue. God, I love that. Which is what happened at Prada this season . The idea was: skirts. That’s it, that’s the whole idea. The show was 63 different skirts – some with a sweater, some with a bra top, some with a jacket, but the point was the skirts. They were knee-length, give or take an inch up or down, and A-line, although…