Has anyone managed to get a free xbox live gold membership?

I see many of these methods online about offers to getting a free 12 month xbox live code and whatnot, but I was just wondering if any of them actually work. The current one I am looking at the moment is Rewards1, however I am very sceptical of the whole system as the last time I offered questionnaires for vouchers and stuff they only sent out a few questionnaires and stopped doing so before I could receive a voucher.

So yeah, any comments are welcome. I know I probably should stop wasting my time and just pay the £28 for xbox live.