I’m starting a new role next week. New employer’s office is one of those open plan buildings, windows don’t open, all controlled by AC. Outputs are in the ceiling. I feel the cold so want to buy a cardigan or layer that can live on the back of my chair. I want to look stylish. I don’t want to look frumpy. A fine line with a cardigan! I’m 40. Thinking black so it will go with most things and still look smart. Can anyone share some suggestions?