Was it visions of sugarplums that made my Christmas Eve day commute to work so sweet? Or was it President Bush's "pardon" for all us Federal workers one half day of freedom for the upcoming holiday? No, as I looked around the subway car I realized everyone was contentedly reading the Health section of the Washington Post. More specifically, they were reading The Happy Heretic, an article about Dr. Martin Seligman's new book, Authentic Happiness. Wellbeing saturated the underground air. With Christmas just past and New Year's up next, the burden of marking time (more specifically, marking this point in my...