Every year we search out the toys our grandkids will love, and every year we re-learn something we knew when our kids were little—there’s nothing quite as fun as playing with the cardboard box toys came in. Boxes have a way of firing up the imagination. In the mind of a four year old, a box is a castle, a secret room, or a submarine. Maybe we should skip the toys altogether and just give boxes on birthdays and holidays. Or, maybe not.