I was doing a Google search recently about photo techniques and came across an old favorite of mine, the Cyanotype. I have never created a Cyanotype in the dark room myself, however, I really like the way they look.
Creating a Cyanotype in Photoshop is much easier and less time consuming than it was in the dark room . Combine that ease with the beauty of Actions and you have yourself one heck of a good time that can be recreated on any image time and time again!