Take 10 minutes and read this terrific profile of Peter Tebow -- Tim's brother -- in Friday's New York Times. Even if you already know Peter's backstory, it is fascinating.
Money quote, from Tim: "He lets me be stupid, be my brother. He gives me a hard time and after a tough day is a support system and lets me take my mind off of it."
(Kudos to NYT reporter Pete Thamel, who constantly finds new angles to illuminate Tebow's life, on an off the field.)