I used to have one. I used an old, metal military footlocker. I filled it with about 60% peat moss and 40& good topsoil. Don't use the bagged potting soil. It has fertilizers. Toss in a couple of boxes of redworms, not night crawlers. Night crawlers won't make it in Texas. Keep it semi moist and covered. Feed the daily coffee grounds and newspaper. Place the newspaper on top of the dirt and grounds and wet it. A lot of people tell you to put kitchen leftovers in for the worms. They are right but you will have a maggot box. It ain't rocket science but is interesting.
