How do I CRANK the autonomy to full?

I've tried the cheat "autonomy_100", but I'd disagree that it results in
full autonomy. A sim only seems to do something when it has an actual
NEED to take care of.

If a sim has all green bars, they just stand (or sit) and whistle the day
away... don't these fools get bored?!?

I'd like to be able to walk away from the simulation and let it run without
my personal intervention... like for 12 hours at a time while I am at
work/school. And come back to a house that hasn't been half emptied
because the bill collector keeps showing up, 'cause no bills were payed!