I've subscribed to the No Meat Athlete blog by Matt Frazier almost since he started it. It's where I built my knowledge base on how to fuel my body for running while remaining true to my vegetarian roots.
Over the past couple of years, Matt has branched out from what used to be primarily running and vegetarian cooking advice to more overall lifestyle advice. (I use the word "advice" hesitantly, as Matt is very "do what works for you" in his approach to most everything and "advice" always sounds preachy to me.) I was particularly taken with his most recent post on How I've Begun Changing My Life, One Habit At A Time.