I've always gone for a casual/smart look, even for work experience which was in parliament. I don't like business suits. I wear black chinos (jeans sometimes), white shirt and I have one with black buttons just little stuff like that which vary, random tie (finding cool ties is the fun part) and I have several Blazers most of which are blue, I have 1 black but I hardly wear it. My favourite blazer is blue but the collars are black and it looks well sick