:-/ I lose my chance to get free stuff the sparkfun free day, but I discovered Lockerz (it is a amazon community, but there isn't any amazon logo).
In Lockerz you complete a single question every day and you get points (called PTZ).
Monthly, you can redeem ver y nice prices 
It is an invitation-only website, but you can get your invitation instantly here:
http://servicios.ried.cl/lockerz/en/
A lot of evidence in Youtube: http://www.youtube.com/results?search_query=lockerz
It's a scam. :
Can't explain how, I'm not telling you to back away. just warning you.
Really??? Why friends are getting stuff :S I have friends from my university
It's hard to explain. Simply its too good to be true. And i already had an invite.
Edit: Though you may eventually get what you want, but still fishy.
I can't imagine how they did emulate more than 5000 videos showing stuff from Lockerz:
http://www.youtube.com/results?search_query=lockerz+proof&search_type=&aq=f
Even if you search for Lockerz in my country (Chile), there are also videos.
Maybe they just stock small amounts of stuff every month and not everyone gets a thing. But for doing nothing it is a big chance to get gifts
I have lockers and basically it is a waste of your time. You may get something after going on the site every day for a year or two but mostly you will miss out and it'll just be a lot of time spent for nothing.
Mowcius
That's why I automatized everything
Daily questions are always 1 button or 1 word (without checking)
And the invitations are automatized also (I am not sending every invitation)
Thought I'd add that it's not a scam, but it is very difficult to get your prize unless you program a macro to redeem for you. 
Also, http://servicios.ried.cl/lockerz/index_en.php will sell your email to some spam sites. : I wouldn't be surprised if they did.
Haha it is my macro, I have more than 6 comments on my site daily with real mails for about 5 years. Never used one mail for spam, I really hate spam!!
It's hard to explain. Simply its too good to be true. And i already had an invite.
Edit: Though you may eventually get what you want, but still fishy.
But ReCreate, tell us the secret of lockerz 
I just wanna get a xbox360 to connect my arduinos
http://i48.tinypic.com/dgm14.jpg http://i48.tinypic.com/eqqmqd.jpg http://i48.tinypic.com/2rrq7vt.jpg
Prices of january. Even $25 usd for 300 PTZ is a lot of money for doing nothing! haha
