Does anyone have any suggestions for keeping ID on their children? I think we stuck paper in their shoes last time, but I was thinking of more of a clip on or waist bag this time. We can have state IDs made, so they would be the size of a driver's license (plus a paper with our cell nos., etc.). I'll have a 6-year-old, almost 4-year-old, and a 6-month-old (of course, she'll be attached to me). Also, is there anything else they should carry on them? Thanks!