Coinks.com
Coinks gives you points as cashback for purchasing stuff, as well as from surveys. Although this is nothing new, what I do like about Coinks and the reason I've posted it is because what they offer that other sites like this don't is cashback on items you've already purchased in store.
Basically, they list a number of items like biscuits and other grocery items, and once you've bought them you enter the code from the packet and get free points for them. Nice idea.
I don't know much about this site, but I've just had a look at it and it doesn't look great.
This site is rubbish. They have hardly any decent offers that are worth giving up your time for.
Doesn't look like the site's actually still being maintained very much, judging by how long ago their last tweet was
Sorry but I actually really hate this site. Their cashback amounts are crap and they give the equivalent of 5p for referring a friend! Not one I would personally recommend.