We learned about vermiculture in my sustainable life skills class today. Worms. Fun things. Worm castings is the best thing you can put on your plants, even better than compost. You can buy (or find) some worms, and raise them in a bin, and they will double their population in 90 days. Put them in the bin with some compost, newspaper, rotten vegetables, etc, and a little bit of sand, because they need that for digestion. They need to be kept moist, but not wet. After they've chewed up everything and pooped it out, you have worm castings to put in your garden. You can sift out the worms and use them again, or put them in the garden too. They aerate the soil, bring up good minerals from deep down, and filter out bad minerals. Worms are good things.