Here's a neat little trick to pick up a free Swagbucks code. After logging into your account, click “Ways to Earn” followed by “Special Offers.” Then click the blue box that says “No Obligation Offers.” You'll then want to skip through the offers shown to you (I had to skip through five, it took about 20 seconds) and finally you'll be given a free code!
If you've got no idea what I'm talking about when I saw Swagbucks, check out this review I wrote of them a while back. Long story short, it's like Google, but with prizes. Every search you make has the potential to earn points, which can be redeemed for stuff like gift cards.