"WinFS Junior" :: A Poor Man's File System

"WinFS Junior" is a small utility which will help you organize your downloads into categorized folders. It is really good for people who don't want to manually organize their files into folders. "WinFS Junior" does your task automagically :).It is built on a concept application developed for the article "Building an Automatic Pattern-Based File Router" by Arian Kulp.

Try it out yourself. It is free along with the source code.
http://weblogs.asp.net/nleghari/articles/winfsjunior.aspx