If I were you, I'd experiment with not quite fully charging in the evening. By leaving the car a bit less topped-off, you might still regain a full charge by the time you get to work. That's because when the Volt hits a certain high state of charge, it just rejects the extra energy and doesn't send it to the battery. It really all depends on how much excess regen power is being rejected on your downhill, inbound half of the commute. Of course, if any regen gains are NOT actually exceeding the power needed for the distance traveled, well, this wouldn't work... but I'd still look into it!
Glad to hear you like your new ride!
Glad to hear you like your new ride!