I've been doing really well with Swagbucks recently and I was happy to see that I just received an email from them letting me know that a gift card had been posted to my account. I've been going for the $5 Amazon gift codes for a while now and just adding them to my Amazon account. In the 2+ years I've been a member there the gift cards have helped me get the laptop I'm currently typing on as well a bunch of smaller items like the mixing bowls I recently ordered.
I don't really have any tricks other than being back in school for my MBA and writing more papers that the professors can possibly grade. I've been searching for all kinds of stuff while writing these papers and it's really paid off.
I'm back up to $20 in my Amazon account and I'm now checking out my Amazon wishlist to see what I'll be getting next. I love what is essentially free money!