Been a while since I posted anything on here. It's been a mixture of not having much to say and twittering instead.
Back to the subject.
I came across Quidco's In-store Cashback product on the weekend. You register your credit or debit card details (which the page assures me is stored sncrypted) and when you use your credit card in an affiliated store you automagically get cash back. Here's some examples: