I am with bj... I try to discipline myself to not having UFO's. That's not to say that I have only one project in the works, but they are still be worked on simultaneously. I like to prepare my backing and binding (and batting) upon completion of my quilt top and they are stored together until I get time to rent a longarm.
I am intrigued by Tinkers Post #4 about attaching her binding before quilting. I have not ever tried this and wondering if anyone else has any experience with this idea.