What did we do at fashion week before Instagram? It's the easiest way to see what everyone else is doing before, during, and after the shows. It also gives us behind-the-scenes access to designers and celebs we might not have been able to see before. We can spy fashion trends and get outfit ideas from it too. In short, Instagram is the best way to follow fashion week, other than right here on Who What Wear, of course. During Milan Fashion Week, it's all about Gucci. Yes, we're talking about that headless moment. Intrigued? Click through for everything you need to know.