Here’s a fun new timewaster for you: Dictionary karaoke. As the site says: “[It] features parodies of popular songs using karaoke-style backing music with vocals provided by audio pronunciation samples from online dictionaries.” There’s plenty of good ones here, but I’ll suggest starting with the version of King Crimson’s “Elephant Talk” (The original version is on the Discipline album). Black Flag’s “Wasted” is also good.