Thanks, Metrosideros. That article sure has the basics. As I look out upon my property, there is so much that needs to be turned into mulch. Ive hit up a local furniture store for permission to get cardboard from their dumpster. Refrigerator cases cover a lot of weeds! There is plenty of mulch materials on the street that other people throw away--but I haven't got brave enough for street collincting yet.