If, like me, you just got some new DC garbage cans, you may be trying to decide if you want the extra space for trash and recycling or if you're goint to toss them out. The other option is to turn one (or both) of them into a composter. Here is but one website that shows you how to do this. If you have two, then you can fill A while the magic happens in B. When A is full, empty B and switch them.