I have a great respect for incremental improvement and I've done that sort of thing in my life but I've always been attracted to the more revolutionary changes. I don't know why. Because they're harder. They're much more stressful emotionally. And you usually go through a period where everybody tells you that you've completely failed.
It's a huge change for your body. You don't even want to look in the mirror after you've had a baby because your stomach is just hanging there like a Shar-Pei.