Gas prices being what they are, a daily drive just isn't in the cards. Plus, we can't get them out of their carseats without waking them up, and sleeping in their seats just doesn't look all that comfortable.
So, we are instead dealing with their terrible, horrible, awful grumpiness, which increases exponentially between the hours of 1:30 PM and 5:30 PM, around which time they get a second wind and are tolerable until bedtime.
I am not sure if we are missing something. My two older kids (singletons) napped until well after the age of 3. I think a large part of the issue here is that the twins sleep in the same room, and we don't have any way to get them to sleep aside from being in there with them (since they will keep each other awake otherwise).
I am very open to suggestions as to how to improve this, aside from going for a drive every day. :)