Erma Bombeck once said, "When I stand before God at the end of my life, I'd hope that I would not have a single bit of talent left and could say, 'I used everything you gave me.'" How each woman defines success might be a personal matter, but there are certain gems of wisdom we can all share. Editor Ellyn Spragins invited women from all walks of life to write letters to their younger selves, filled with the knowledge they wish they'd had before beginning...