Thanks for the link, I have signed up - I hope they choose me to take part.
I tend to convert my TNS points to Amazon eVouchers although I must admit some of the surveys can take quite a while although it's still something for nothing. Another thing that's a bit annoying is that they sometimes close before I get a chance to start them because they have already had enough participants. I've had some freebies though - big box of dishwasher tablets that looked suspiciously like Finish Quantum Powerball, a box of Cadbury's Heroes and a Cadbury's Starbar!