Want to wake up feeling horrible every day you exist in a comfortable corner of this world? That's your right. But try to keep your hands completely clean in this messy world economy, and soon you won't just be discarding your laptop and iPhone and DVD player; you'll be clearing your house of most tools, your car of many of its parts, your refrigerator of much of its produce. You'll have to pour out your coffee cup and empty your gas tank. You'll be living a little like "No Impact Man," a graduate student who tried to live for a year by having no carbon footprint whatsoever. It wasn't pretty.