When I was growing up my sister and I used to draw towns on our giant chalkboard with chalk. We would then drive our cars around in the new towns. This provided hours of entertainment for us. I think my favorite part was drawing (and redrawing) the towns.
When the workers were finished installing the heat pump and we were finished playing with our cardboard houses then we used one side of the box to make this fabulous car mat. Daddy did an awesome job drawing out the city for the boys to drive their cars on.
So, what creative uses do you have for cardboard boxes?