I have heard about websites which send you surveys/questionnaires to fill out and then they pay you in amazon vouchers for each one that has been completed. Just wondering if anyone with experience could advise me of the best website(s) to use and also do you have any helpful tips?
Also, is it worthwhile actually doing them? I will have a fair amount of spare time on my hands in a few weeks or so after I finish my exams so looking to earn an extra bit of cash (besides my part-time job!).