How-To: Closet wine cellar conversion

Instructables user dedub01 chronicled the conversion of his hall coat closet into a well-insulated wine cellar. He writes:

I decided to build this website after becoming frustrated while searching the Internet for practical information on how to inexpensively convert a coat closet into a wine closet. It seemed like everything was either sites for companies that sell full-blown wine rooms, or blogs by people who converted their cellar / child’s room into a walk-in wine museum. Given that (a) I didn’t have a large budget, (b) I only had a closet to work with, and (c) I was going to build it entirely by myself, most of what’s out there on the Intertubes was useless.