I have a new friend who I like a lot, but she is constantly asking me how much things cost. If she sees something new/different in my house she says "How much was that, then?" or if I've had my hair done or gone somewhere she asks "How much did that cost?" in a mildly accusatory tone.
I didn't mind this at first, but now I'm finding it really irritating. If I give a vague answer, such as "Oh, not too much" she will just keep asking until I reply.
Please give me your good stock replies to nosey questions!