I’ve gone from living out of a suitcase sixty percent of the year working 12 hour days for weeks on end to a less than 40 hour a week full-time job where I can come in to work an hour earlier or later if I want. You have no idea the freedom that brings. Most of my friends are envious, even if the paycheck isn’t as big.
There are still times where I need to work a little more due to project deadlines, but nothing resembling my past jobs. As far as life hacks, I’ve been taking to heart @Chris ‘s work model of procrastination: it’s amazing how easily you can be sucked into the seemingly urgent items that can actually wait a day or more without action. Also, I think constantly looking for ways to optimize your work is critical: can I call someone for a three minute phone call instead of spending twenty minutes crafting an email to explain a complex issue?