Consolidate art supplies in a box or basket that can be stored away when not being used. To organize papers and your children's artwork, pick up a few large, clean pizza boxes and store them under a bed. Frame favorite pieces to decorate kids' rooms, replacing older art with newer creations every now and then. When it's time to recycle, take photos of your children with their artwork or school projects. Put the photos in an album and let go of the physical items.