From layoffs to security threats, we live in a crazy and scary world. You could just pray for calmer times — or learn to love the occasionally wild ride.Life, as you may have noticed, is one great big roller-coaster ride. From job changes (planned or not) to turn-your-world-upside-down milestones like marriage and motherhood, there's no end to the twists and turns you face through the years. And these days, what with headlines constantly reminding you about the shaky economy or latest terrorist