Late 30s, starting new job next month. Been out of work due to having kids for the last five years. Put on quite a bit of weight. Size 14-16, 5ft3. I hate everything in my wardrobe. I just feel so frumpy. Office is smart-casual, but I have no idea what this means - apparently some people wear jeans and trainers, but it sure I want to show up looking that casual. I just want to look nice and feel confident. I don't know where to start, which brands I might like etc. Don't want to look too boring, but don't want to look silly either. I know it's not the biggest problem in the world, but anyone have any advice?