I have recently done a few things on quidco that has made my balance shoot up, basically spending little or no money and getting more cashback than cash spent. For example I did 2 x one penny 3 month magazine trials and got £7 back each. I also signed up with coral bet deposited £10 and bet on something almost guaranteed to win and got £25 cashback (even if I had lost the bet I would have still been £15 up).
Anyway, can anyone tell me anything else like that where I can get a lump sum cashback? I might look at the other betting links on quidco. I'm also thinking things like credit cards, activating then cancelling.