Knowing When To Quit

 I confess that I don't know when I am finished with a painting.  I am pre-posting this on Friday, thinking that I may stay home Saturday morning and truely finish.  Trouble is, in trying to finish this painting, I started like 3 more...and the mailman finally delivered the rivets I needed to finish my knife sheath.  So many things to do, and so little time to do it.