Music: Ramble On
It's probably a bad habit, but I listen to music when I study. One of my favorite tricks is to put on an entire band's discography and listen to the albums, one after the other. It's great for those late-night studying sessions, and it lets you sample even the lesser-known works of an artist.
"Ramble On" is certainly not the best Led Zeppelin song. They didn't perform it live, and Robert Plant was reportedly embarrassed by all the Tolkien references in the lyrics, but it's pretty catchy nonetheless. Plant would be really abashed at this music video, though: