I have one at the moment - the Poinsettia wall hanging that I started to learn how to FMQ.
I just finished two quilts and shipped them off to the LA quilter this morning. Ready to clean my sewing room, clean my machine, and start on the next quilt.
I do have a lot of fabric in my stash that I bought with a particular quilt in mind and either never started or decided that I didn't want to do. If you count that fabric as UFOs then there are too many to count. I figure that if I never started to cut and sew, it's stash, not a UFO. That's my story and I'm sticking to it.