Seasons helps alot. I play each household for an entire season then move on. That way, from neighborhood view I can see who is behind by what season they're at.
This is exactly how I play too.
Keeping everyone in rotation is easy, but my problem is university. The advantage of playing every family for one season is that it's easier to have children of different ages throughout the hood (kids, teens, etc.), but then I think, when do I send them to college? How long do they stay here? I use the college adjuster so I can speed them through, but then I'm not sure when to bring them back to their families. Currently I'm just sort of waiting until each child has reached teen, and then sending them in batches, and I'm kind of thinking that I'll play the households back in the main hood for a season and then bring the kids back. What does everyone else do?
(And sorry for the hijacking!)