Another great book is Steven Covey's "First Things First". For those that haven't read this book, it takes your traditional way of doing things such as making a list, prioritising and doing, to a whole new level. Its a practical book,that teaches you to plan your tasks around the things that are important in your life("big rocks"), and to learn how to empower other people to help you accomplish those tasks. For me this book and his "Seven Habits of Highly Effective People" which is also a must read, changed my life. I now spend more time planning ahead which gives me more time to spend with the people that are important in my life.