Here is a simple yet very effective composting bin created out of little more than a trash can. The link includes detailed instructions and pictures showing how to make this bin.
“Most compost bins have some basic draw-backs that make urban composting a pain: They’re expensive, they’re not portable, aerating the compost is difficult, there’s no way to separate the composted material from the non-composted material. I recently made a second (and I believe, successful) attempt at making the ideal urban compost bin.”
