Lots and lots of surveys on toluna, worth the time taken for it can redeem at 35 pound via paypal, good product testing survey options, usually earn about 35 pound a month for couple of surveys a day
Can also earn 15 points a time by clicking on polls there is also more points to be earned from downloading their browser extension that tracks in the background.
Definitely one of the biggest earners and an all time favourite.
Sign up here
Be careful however if you don't pay attention and click through without paying attention they will flag your account.