I just discovered a brilliant site yesterday that i wanted to share with everyone - im gutted i didnt find this before i could of saved SO much money!
How the site works is you sign up (which is free), then login each time you wish to buy something online then click onto the links to each store - there is every shop imaginable on this site ranging from M&S, amazon, lastminute.com to even ebay! There are no admin fees so you have nothing to loose! The amount of cashback varies from 5%-75%. I was a little suspicious at first but its through advertising how the site makes money, just checked got paid £1 already in my account for signing up yesterday! This site is fabulous especially in these credit crunch times!
Simply click on this link to sign up http://www.TopCashBack.co.uk/ref/catherinemaughan