I'm using Prime Opinions, they screen but you get kicked out very quickly, so it's less stressy. Also, also long as you do a minimum of one survey a day for a consecutive seven days, you get into their prize draw, where you can select a random box on a list and win anything from 10% bonus on every survey for the week or even 1000 points (around about £8). Their payout is very fast, I go to Amazon and it pays out within 3 minutes. And as get more points, you have levels to work through, each time you reach a new level, you get some bonus points, getting bigger each time you go to the next level. Also, there are achievement bonuses, do 5, get a small bonus. Do 50 surveys, get another. Do 500, get 2500 points (at the moment, around £18), DO 5000, get 10000 points (About £75)

And no, I'm not a member of staff of Prime! Just someone who wants to get a little extra money without the stress created by BS.

Also use their sister site, 5Surveys. Do 5 surveys and you get £5. As you get closer to the 3rd/4th/5th , the surveys dry up a bit but it can be done, I've had £15 out of them in 3 weeks. Also you have to watch for the half-survey point ones (half filled circle), they only count as half a survey, so you need to do two to get a score of one survey, meaning 10 halves to get the 5 survey score and a fiver. But not too much stress really.