Use cereal boxes to make arts and crafts projects by folding and cutting the cardboard into shapes for homemade flashlights, notebooks and gift tags. They can also be formed into drawer dividers or desk organizers.
To make a notebook, cut out the front of a cereal box, and trim it to the desired size, preferably a little larger than 8 1/2 by 11 inches. Place a stack of plain paper on one side of the cardboard, and fold both in half. Using a needle and embroidery floss, stitch through the spine, and then glue some decorative paper to along the outside of the spine. Run embroidery floss through a button, and attach the button to the side, wrapping the floss around the book to keep it closed.
Cereal boxes can also be used to start seedlings in the spring. First, use an exacto knife to slice open the front of the cereal box, forming two flaps. After making sure the top opening is glued shut, fill the box with well-drained potting soil, and plant seeds. Use a sharpie to write the name of the seeds on the lid. Set the planter on a flat dish so that the water can drain out of it. Once the seedlings are several inches tall, transplant them into pots or outdoors.