Frequent Surveys, Good Amount Per Survey
ValuedOpinions is the best survey site for frequent survey invites, the amount per survey and how quickly you can reach the threshold. A lot of other survey sites frequently screen you out of surveys but this happens much less often on Valued Opinions in my opinion. Vouchers are sent out immediately where possible - I always use Amazon vouchers and they're always with me by email an instant after I request them. I can easy reach the £10 payout threshold within a couple of months.