Thanks Sherbert
I actually just talked to a Clairol rep, and she said that color I used is designed to wash out in about 28 shampoos. ...lovely.
Of course then she talked about Clairol lightening products I could try.
However upon some research, I found that Head and Shoulders apparently fades color jobs...? I won't be back to a brunette by this evening, but hey It's worth a shot.
Also, my sister used to work as a rep. at a salon... *duh*
Why didn't I think to ask her?!

I've read different stories about color stripping; some say it has severely damaged their hair, and others say it has not. So I guess it depends on the individual and their hair type.