In this age of iTunes and illegal downloading, it’s a cinch these days to completely fill up you MP3 player or cell phone with music. What to do? Consider the aptly-named Shrink My Tunes, containing technology developed by NASA scientists. The software compresses your MP3s, allowing you to fit up to four times more songs on your player. You will lose a minor amount of sound quality, but we think it’s a small price to pay for additional storage space. Shrink My Tunes is compatible with Windows, and a Mac version is down the pipeline. Available for $40 USD.