Have a kid. Kids are very effective alarm clocks. Seriously, about half of my days lately I wake up on my own, anytime between 4:30 and 6:00 am. The other h

Have a kid. Kids are very effective alarm clocks. Seriously, about half of my days lately I wake up on my own, anytime between 4:30 and 6:00 am. The other half I wake up to my two-year-old crying, somewhere in the same range. Either way, I love that hour or two of quiet work time before I have to go to work.