SECRET
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Costume Box have a post Halloween sale, you get a further 20% off everything in their clerance section with the discount code.
I've used them once in the past and they're pretty decent!
SECRET SALE..Shhh!. Members only Special Halloween Clearance. Use coupon code: SECRET to get an extra 20% off everything in the CLEARANCE category
Hurry! For 5 days only, expires midnight EST on Tuesday 10th November 2009