At least none of the solutions sound really complicated.
I wish I had an answer, or the time and set-up to do it.
Has anyone mentioned tag teaming? I think it would be difficult to remember whose day it is, but if someone did it for a month, then tagged another (willing) dwellar, someone would have to be on the ball for a month, but there would be an end in sight.
Eh, I got nothin'