Custom file types and code generators in Visual Studio #.NET

Ran across an article on CodeProject that does some interesting things. It adds a new file type to the File New dialog (an "xfg" file, which as it turns out is kind of like a .config file), and when you add an .xfg file to your project, it automatically creates a code-behind .cs file with strongly-typed properties for reading the XML. Looks pretty slick, and worth looking into in my copious spare time.