Composter

Compost. You don't need a worm farm to compost your household wastes. The simplest thing is to get an outdoor composter, or just a bin, where you toss your vegetable scraps (no meat) and yard wastes. What comes out after a few months is compost which you can use as fertilizer on your lawn or garden.

This kitchen composter from NatureMill is a more high-tech approach. You put all sorts of scraps in there, even meats, and it uses heat and air to break the material down into compost. Waste is a terrible thing to waste.

Here's a fun quiz to teach you a thing or two about composting.