I'm a notorious procrastinator. I'll start a project, put it down and start something else. I might pick up the other one days, weeks or months later, sometimes years.
You could call me a really good starter and a very poor finisher. Sometimes I'll end up frogging a project if I can't remember what I was knitting or if I don't really want the project.
I'm sure there are others out there like me. Sucks, but such is the nature of human beings.
I will finish projects if I'm making them for someone else, though.