Proving that caffeine can get more than just your body going, designers Mischer*Traxler created batteries utilizing old Nespresso aluminum capsules, coffee grounds, strips of copper and salt water. As part of Vienna Design week, the batteries were setup to power clocks displayed in Nespresso Austria's display window.
In addition to questions of flavor/quality, one of the common concerns folks have about Nespresso machines is the capsules -- specifically, are they eco-friendly? They are definitely recyclable, but you need to clean them out beforehand (often more work than some folks want to do) so here's another option instead. Crush 'em up and use them to power your alarm clock! We assume no liability when you arrive late to work, however.