shopping clue, anyone?

[chhotii]

Imagine you are female; you have something coming up for which you have to dress up, in a professional style-- such as a court appearance or a job interview; it's too late to get anything custom-tailored; it's going to be sub-freezing that day; and you have a magic credit card, on which you can charge nearly any amount for the clothes you buy. Where do you go shopping?