A worm composting bin, known as a vermicomposter, can be fairly inexpensive and easy to maintain. There are several ways to vermicompost. Below are instructions on how to build one kind of worm composting bin designed to be used inside. It is also possible to purchase worm composting bins. You will want to put your bin in an indoor space as you do not want the worms to freeze in the winter or get too warm in the summer. Additionally, you may want to put the bin in a basement or other out-of-the-way space since you will be producing compost and worm “tea” in the composter. Here are the supplies you need: 1. Two plastic bins – one must be taller and rest inside the other, shorter bin. The top tub should have a top to keep the worms from finding their way outside the box. It also needs to be somewhat flexible so you can drill holes into it. An 18 gallon tub that is roughly 15 inches deep, 20 inches wide and 15 inches tall works well. 2. A drill – To drill the holes so the worms can breat...