When Next announced a special network challenge in order to find a guest blogger for their ‘Style Secrets’ blog, I was immediately interested. I love to blog about the sort of clothes that I personally love to wear, especially those from one of my most visited High Street stores. I decided to take up the challenge to show Fashion-Mommy readers what I would choose as the five key pieces for A/W 2012 from the current Next collection. My picks were influenced by the most eagerly awaited film of the season – the Carey Mulligan/Leonardo Di Caprio vehicle ‘The Great Gatsby’. The latest Great Gatsby movie is released on Boxing day…