Have two cars.
The older of the two -- the 95 Chevy Cavalier -- I've been trying to put as many miles on it as possible. Whenever we're driving around town we use the Cavalier and whenever there's an hour or two hour trip I opt for the Cavalier. The thing is starting to rust out and I figure within a few years it will be unbearable so I might as well get as much out of it as I can.
Because we're leaning so heavily on the Cavalier, we barely ever start up the Toyota Avalon. My wife will use it for grocery shopping and a few errands around town when I'm at work, but that's about it. Most of the time it sits there.
I was wondering if these little, infrequent jaunts could damage the Toyota. I seem to remember someone -- friend, coworker...don't know who -- saying that you don't want to buy a car from the stereotypical little old lady who used the car only for grocery shopping because this infrequent use damaged the engine. How? I don't know. Is this a myth, or does it have some truth to it?