The document discusses the principles of reduce, reuse, recycle and respect as they relate to reducing waste and environmental impact. It provides examples of how to reduce usage of materials and resources, reuse items that would otherwise be thrown out, recycle common materials like aluminum and paper, and respect the earth through conservation efforts. Specific tips include using both sides of paper, sharing materials, reusing pizza boxes and milk jugs, composting, carpooling, turning off water when brushing teeth, and shutting off lights to save electricity.