To better understand the kind of materials that enter and leave your home, office, or school, consider conducting a waste audit. Set a span of time like a week or a month, and separate your waste categories. Weigh the different kinds of material flows that go out the door (landfill waste, organic compost, aluminum, recyclable plastic, reusable material, etc.). Design a "material recovery" program that minimizes the amount going to the landfill. This is a great exercise to do with kids but can be very convincing to corporate higher-ups, too, especially since most companies pay to have their trash hauled away and can get money for recycled paper, containers, toner cartridges, corrugated cardboard, and such.