Before, having unfinished tasks gives me something to worry about. I don't know, when it comes to portraiture, paintings, etc. I just can never finish things. When I start doing a task I become so eager to get started and so engrossed in the process of doing it, one reason for those incompletions was I wanted instant results.
Take a look at the pictures below, these are some of the artworks that I forgot to finish. But somehow gives me a sense of purpose in life to look forward to. Otherwise when people ask me what I am doing I would have to say nothing at all! Now I can say I am trying to finish my painting! or maybe I think I secretly enjoy having unfinished things. ;>