Here's a credit crunch tip - open a Quidco account and do all your regular shopping via there.
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www.quidco.com]
It literally is, in the imortal words of Dire Straits, "MONEY FOR NOTHING".
I use it for everyting and I get hundreds of ££££ back every year (£440 already this year). Honestly, money for nothing. They retain £5 of your earnings every year to run the site but other than that you get a percentage back of all you spend. And they don't allow any advertising on the site - which is brilliant.
Here's how it works - the etailers sign up to Quidco. If you want to buy anything from that etailer then you go to Quidco, log in, find the link to that etailer, and then shop normally on that etailer's site. Quidco is sent a percentage of your spend and they pass some/all of this on to you. The money really mounts up quickly so well worth doing.
Mostly I use it for booking Eurostar, booking travel with Expedia and buying CDs. Bravissimo has recently stopped it's association with Quidco - which is a pain! All Saints, however, gives 10% cash-back and free shipping. Nice - I love All Saints.
Try it.