The first day is the hardest. Your 5-year-old waits for the bus that will whisk her away to kindergarten and beyond. From now until high-school graduation, it will be homework, sports, finals, talent shows, homecomings, science projects, proms, BFFs, and more. The bus pulls up, and, camera in hand, you're capturing the bittersweet moment when you suddenly realize: You'll be following her like this, snapping away, for the next 13 years. Make those pictures count.