Going the extra mile means doing more than is expected, required or anticipated. In the business world, it means under-promising and over-delivering, paying attention to details, obsessing about customer satisfaction and getting things done. Going the extra mile is a great analogy, especially when you run a lot like I do; it means pushing yourself to go one extra mile while running, do one more rep in the gym, one more lap in the swimming pool, one more practice session before that all important presentation.