Secondly, I picked up a copy of the free New Look magazine instore (Spring 2011 edition) and on the last page there is a voucher for 20% off instore 25 March-10 April 2011 inclusive and online 1-3 April 2011 inclusive. Check out the terms & conditions but as far as I know, it excludes permanently reduced items, Gold, Idol, multibuys, gift vouchers/card, e topups or payment from store cards and cannot be used in conjunction with other offers like student discount. The voucher from the magazine needs to be completed and given in store.
Online code is MWA11S
Enjoy - hope it works!