With Saturday being Earth Day and all, I thought this might be a good time to talk about earth. Not the planet Earth; just plain ol' lower-case earth.

Have you been treating your dirt like dirt? So many of us never give the earth beneath our feet a second thought. Admittedly, it's not a terribly glamorous topic; in fact, soil gets little or no respect in the media, often being portrayed as something bad, or "dirty."