Quick Lament - Will this ever get done?

Sadly, every time I start on one piece of research I find that another rears its ugly head.  In very short order I'm researching down another fascinating tunnel and I've lost track of the original bit of research.  This isn't an unusual occurrence and the new research that I find myself doing is tantalizing and very interesting in and of itself, but it's not getting my original research completed.  Therefore, I have lots of starts, but very little finishes, which can get somewhat frustrating.  There is also the fact that even when I find a finish, it's not really a finish, but only a finish for now... such is the bane of historical research.