I just read an article in a local paper where the author said that everyone should have a compost pile. And the reason behind his claim was that it should not cost anything.
Of course this holds true for all folks who have a yard. Apartment dwellers and condo owners would be excluded. (However there are indoor composters available.)
This year I took a corner in my yard to actively maintain a compost heap. It is nothing extravagant. Just a pile of discarded vegetables and fruit peels topped with leaves and some grass clippings. As the author said you do not need expensive tumblers or containers to get started. If you want to spend the money go ahead - It will still make you "green" in the long run. I'm too cheap to go for the expensive containers.
This is pretty easy. At the rate that we add kitchen wastes we should have a good pile to be used to fertilize my plants next year. I'll have to let you know how that works out.