Several times they scared up a covey of quail and once even a wild pig.
The Seven Habits of Highly Effective People by Stephen Covey is another classic that helps with mental hurdles.
If you feel that you are not managing your time effectively, learning how to prioritize your tasks using a time management Stephen Covey Time Management Matrix can help you to become more productive as you learn to use your time wisely.
He is a big proponent of developing time management skills, and he partners with the company Franklin Covey to provide time management products, like day planners and organizing products.
Covey teaches about a number of related items in his books and seminars, such as prioritizing activities, goal setting, and focusing on the results you want to achieve.