The best executives know how to organize their time into large chunks so they can make progress on big projects, Eric Barker writes, citing a book by management expert Peter Drucker. “If you're just doing what comes in, you’re on the treadmill, not making a difference,” Barker writes in a blog entry.
 
As I get older, I have found that time management doesn’t get any easier. I still have to work at it. Setting aside blocks of time to do the important things—and not just those that are urgent—requires both effort and discipline. If you want to be more effective at work or home, you have to work at it. Instead of complaining that you just don’t have time, start practicing better time management.