Your music collection migrated to iTunes 10 years ago, and you watch all your movies on Netflix. So what are all those CDs and DVDs doing cluttering up your shelves? The staff at Mr. K's is more than willing to take those relics off your hands, and they'll even pay you for them. Generally speaking, you'll get 30 percent of the store's sticker price for music and movies. The same goes for nonfiction books and some literary fiction, although most novels are only good for store credit, which can range from 30 to 40 percent of the sale price. Believe it or not, there are still some dinosaurs out there who want to buy your old crap. So go ahead: Unload your embarrassingly comprehensive trove of Weird Al Yankovic CDs from the '90s. You can still listen to "Albuquerque" on your iPod.