The most interesting one to me was the caffeine nap: you down a shot of espresso like it was vodka, set the alarm for 20 minutes, and take a nap. When the alarm hits you’re refreshed and the caffeine is working. It reminds me of Agent Bladerunner’s method, which he learned from a founding father: nap in a chair with a spoon in your hand. Right when you’re about to hit REM, you drop the spoon and wake up. If you do go into REM, you probably need to stay there in increments of 90 minutes or you’ll be really groggy.