Home Composting At Home Part 1:
Home Composting At Home Part 2:
Home Composting At Home Part 3:
and *then* to go on to the next step, check out the book Food Not Lawns or Gaia's Garden: Home-Scale Permaculture, Gardening When it Counts: Growing Food in Hard Times and finally, be sure to take a look at The Post-Petroleum Survival Guide & Cookbook.
If you need more than a little imagination to see what such actions are capable of, watch this, and see how we could go about "Greening the Desert."