It's easy to say "get up early", but that doesn't mean you can do it. LifeRemix has some tips for making it easier, which go beyond just "go to sleep earlier." I particularly like "Write down why you're getting up" and "Use the time productively."
Personally I got up before 5am this morning (usually I'm up at around 6:45). I'd gone to bed at 9pm last night (normally closer to midnight), and that's just my pattern - go to bed too early for myself, and I wake up earlier than usual. I'm cool with that. I feel good about it because it keeps me from hunting around the kitchen for a snack at 11pm, which I know perfectly well is bad for me.
But here's the thing. At 5am, dark house, wife and kids asleep, what can I do? I have a good 90 minutes before anybody else wakes up, that should be some seriously productive time. Here's what I did:
* Put away the dishes so my wife wouldn't have to do it.
* Made (and ate) breakfast. Scrambled egg and cheese in a wrap. Not bad.
* Read lots of internet news and made a few blog posts.
...other than that last one I was doing ok for myself. But I would hardly call that a productive use of 90 minutes!
P.S. Their #15, "change alarm sounds often", is actually a really good idea. I was just listening to a podiobook ("Beautiful Red", check it out on podiobooks.com) that had that as a minor scenery point, the character woke up to "male stranger's voice" that scared the living heck out of her, and changed her alarm to "birds chirping." It's a scifi book, but what a great idea that is! Does anybody have an alarm clock that actually allows you to do such a thing?