human nature. It is disposable - toss it back into the recycling bin when you're done playing. Where Can I Get It? Anywhere. And everywhere. It sneaks into your home each time you bring groceries and sundries in from the store. Look for it housing cereal and diapers, on the backs of writing tablets, in between folded bedlinen. If you know of people who've recently moved into your neighborhood, bring them a casserole and then beg them for their moving boxes - these are often made of exceptionally sturdy cardboard. Bring your kids to supermarkets and members' clubs like Sam's Club and Costco, and ask the staff for cardboard boxes and the giant sheets that line their pallets. They are usually only too happy to oblige, especially when you say it's for a children's craft project. and the occasional fancy paperboard (compressed layers of paper) gem that comes along: Somewhere along the way, you might need to decide if you're more of a cardboard box refashionist or a bona fide cardboard freak. Here's what I mean: The Cardboard Box Refashionist: You work primarily with cardboard boxes to turn them into things that retain the structure of the box. So stuff like cars, puppet stages, ovens, personal rocketships, that sort of thing. When you see a cardboard box, your first thought is what you could make out of it that has those dimensions. You love that the box already has corners and a flap and sides to work around. You're probably