Folding wagon: what it is and why you should own one Have you ever seen one of those wooden carts with the big, metal circles at the bottom? They're called folding wagons, and if you're looking for a backyard toy or garden storage solution, this is it. Unfold the wagon by pushing down on one of the circles, and it folds into a small, lightweight package - great for storing in tight spaces or taking trips. Plus, since these carts can be assembled...