I am following Marys lead and posting an old TWT! This is my very first TWT with Mary. Its from May of 2008.
This may seem odd for a Tightwad topic but we make garbage cans full of good rich soil each year this way. We have an open compost pile in a wood frame bin and a trash can compost bin. Both are homemade. We toss any biodegradeable item in these bins. ( this includes shredded paper, any non fat kitchen waste, bunny droppings, lawn clippings, leaves, and wood chips from the wood pile) Top with thin layers of grass and leaves from time to time and stir once a week. We end up with really rich beautiful soil made from stuff that would have gone to the landfill.
Be sure to stop by here for creative tightwad ideas: http://www.homeschoolblogger.com/Canadagirl/