Through February 14th you can get a FREE $2 Amazon MP3 Credit! Just enter code VDAYMP3S to get your instant $2 credit.
You must redeem the credit by February 14, 2011 11:59 PM PST!
This should get you at least two songs totally FREE! But make sure you redeem it right away -- check out the Bestsellers in MP3 Songs list here for some ideas.