I don't have one, but I often think about how this is a major untapped trend in modern fashion, especially while reading books (everything from tolstoy to fantasy novels) where they feature heavily.
This winter has been really warm (besides those like two freezing sub-zero weeks). Therefore, I don't want to always wear a coat, but I also don't want to worry about lugging around a coat that I'm not actively wearing.
Cloaks are the perfect solution. Bundle up when you need to, let it hang loosely from around your neck when you don't. Let's bring back and normalize cloaks.