I have to go (work to do) but black trousers OK if good material and hang well. I agree with the fish that they are difficult to find tops to go with, if I wear them they make me lazy and I stick to the same things and get in a rut. If trousers are coloured, makes you think more about what you should be wearing. (remember black trouser rule is this mumsnetter's personal opinion, not necessarily the consensus. The value of shares may go up and down, and your home is at risk if you do not keep up payments on a loan.....etc)