Haven't made it down to single-car family, but I'd love to. We have a minivan that gets all the driving, and 'my car' which gets driven much less. Much of the time I leave it in the parking deck at work (out of the SoCal sun), where it has a few times sat so long that the battery died and I had to push it to a downhill ramp to start it by popping the clutch. I'm super proud that one year it was driven only 863 miles, but it's gone up since then, because our oldest got his license and used it to take over driving him and his siblings to school. But there was never any question of turning into a three-car family.