We put up a pretty heavy duty routine for endurance athletes, and got some great feedback on the fact that people, you know, have jobs. So here's a routine for endurance athletes focused on putting the bulk of the work on the weekends, and using weeknights to incrementally work on specific issues. Consult your physician or physical therapist before undertaking any new workout regimen.
The training and preparation is essential in any part of life. Endurance training is no different. The following two weeks training cycle (which you repeat every two weeks), along with proper nutrition can help you become a more efficient endurance runner.