"Happily Ever After" wasn't supposed to come with a do-over option. But when my husband of 20 years packs up and heads for greener pastures, and my son heads away to college, that's exactly what my midlife becomes. A do-over. This time, though, I plan to do things differently. Age is just a number, after all, and at 40 I'm ready to carve my own path. Eager for a fresh start, I make a somewhat unorthodox...