I had wanted a black wool coat, kind of like a navy pea-coat, for quite some time. By being very patient, I was finally able to find one in great condition at a garage sale. For ONE DOLLAR.
This was probably my greatest frugal find, ever. I usually look for coats at the thrift shops and most of the time I just have to make do with something I'm not wild about. I figure -- it's there to keep you warm, not necessarily to be the most stylish thing ever.