We have a black/white corporate colour code in my office for staff who meet the public. Some people will think that this is restrictive but it does avoid many of the decisions about colour co-ordination when you are rushing because you are running late during a bleak winter morning.
I have recently found 2 white tops in charity shops. This one has half length sleeves and features around the waist. I wear it with a belt, The top cost £2.00.
The skirt came from M & S during the spring - I can't remember the exact cost but it was in the region of £20 - £25. I wore this skirt and a similar one to the office regularly during the period from late spring to early autumn but now that the mornings are chillier I have been wearing black trousers most days instead to keep warm.
Do you have a dress code for work?