Black jeans and a smart blazer are never going to let you down – word to that – but on their own, they can be a bit lacking in the lustre department. Daisy Lowe's sheer red cami vest with tiny repeat-bow pattern, instantly sasses up her black-on-black pairing. So go ahead – do a Daisy and wear a girly vest top under your faithful jeans and jacket, then seal the deal with a bright red lip and manicure. Ta-da, another knockout going-out look in the bag. BOOM.