Tomorrow, I can wear a T-shirt to work if I want to. It will cost me £2 which go to charity. Last autumn, we had a jeans day. Jeans privilege was more extravagant, £10.
I am not quite sure where the border goes between a T-shirt and a top. I have been wearing tops all the time, for free.
Since I am not going to the office tomorrow, I don' t have to make a decision.