Cardboard boxes are often recycled or thrown in the bin after they have been used. Recycling is the more eco-friendly of those options, but recycling still uses energy. Cut out the energy consumption all together; make use of your unused cardboard boxes and turn them into a grocery shop for your children to play in. Make long open-top freezers, shelving for display and even a till counter out of cardboard boxes, a few craft supplies and some common household items.
Open two of your largest cardboard boxes and cut the flaps from the open end so that the tops have clean, open edges.
Lay the two open boxes next to each other, with open ends facing upward. Wrap masking tape around the boxes to secure them together. This will be your long open-top floor freezer.
Close the third large box and tape it shut with the masking tape. This will be your till counter.
Open the medium-sized boxes and cut the flaps off with a utility knife, the same way you did for the larger freezer boxes.
Stack the medium boxes on top of each other with the open ends facing out, all in the same direction. Wrap masking tape around them to secure them. This will be your food shelving.
Tape the tops of empty food boxes shut with strips of masking tape. Use boxes from gelatin, cereal or rice. Do the same for a few spice containers, coffee cans and canisters. Put the food on your shelves and in your freezer.
Place a toy cash till, or a simple calculator on the counter.
Do not place heavy objects on any of the cardboard structures. The structures could collapse or fall and cause injuries. Use only empty food boxes.