[MetroMPG]

I keep solar panels on the car as well, and since I don't drive daily, it's a decent solution.

But at this time of year (cold), battery performance is already degraded, so I do a lot less P&G or coasting with the engine off. Or if I'm on a long enough trip, I do much less engine-off toward the end of the trip to ensure I park the car with a decent state of charge in the battery.