An unusually thought-provoking book that's impacted my approach to work & daily habits this year-- The Way of The SEAL, by Mark Divine > http://www.goodreads.com/book/show/17465530-the-way-of-seal

If you read nothing else, Chapter 2: Develop Front-Sight Focus. Solid, practical advice on directing the win in your mind. Here's a good interview with the author> https://www.youtube.com/watch?v=T_bDMEUF7F8