I'm due to start in a couple of weeks - so far, I have a dress, a pair of trousers, two plain round-neck tops (one purple, one black), and my usual knitwear that's looking rather shabby but will do for the moment. I have one pair of black boots that come up to just under the knee - too casual for an office job? I'm just not sure how smart to go really? Don't want to look like a plonker and be over or under dressed and it's been years since I worked FT! What's the done thing now?