The most successful people I know make navigating business and life look easy, often because they have their crap together more than most people. They get up early, stay in front of health issues, and are smart about money. They know the value of a good night’s sleep, a restorative vacation, and a well-written book. And they stick to certain routines proven over time to work. Check out these quotes from 21 successful executives who credit simple daily habits for helping them get ahead in business and life.