Writing, Yu-Gi-Oh!, yaoi, vampires, anything that has wings, chocolate, tea, researching, music, drawing, chocolate, Yu-Gi-Oh abridged, RPGs, games, friends, chocolate, wait I said that already...
No? It's bad if you discover them and then play them repeatedly at people knew them years ago as if they were new though. Which is why I had to hide my friend's Nirvana albums for a day or so once.