My sister use to tell me the stories of traveling with her children.  The first time she was about to take her new baby on an airplane, she didn’t sleep for a week.  "And I forgot to bring Zach’s favorite stuffed toy," she told me after returning.  Zach actually slept through the entire flight, so she lost a week’s worth of sleep for nothing.  Now that she has this list and the other travel checklists (and now that her children are preteens), she no longer loses sleep over traveling with her kids.  "When they’re babies," she stated, "the list of things to bring is huge.  How can something so little take so much stuff!"