Aseptic boxes, paperboard containers in which food items like juice, milk and ice cream come, can be difficult to recycle in many communities. Instead, save and reuse the small containers as seed starters for your backyard garden. Simply poke a hole in the bottom of the clean container, and fill the box with soil. Add seeds, water generously and wait for your new plants to grow. Once they are large enough, the paper can be peeled away, and the new seedlings can be put into the garden.