Well, good luck and have fun!
Get an app(s) like Chargepoint or plugshare etc to find places to charge.
In case you don't, take a loooooong extension…or a couple of medium length ones, and don't be shy about plugging in. Like at a restaurant, I'll plug in and when going in tell them "I plugged in my car, I hope that's OK." Never had anyone demur, but if they said something about the electricity I plan to offer to look up their electric rate on my iPad and add it to the bill.
Same for hotels…and when making reservations, might not hurt to ask if they have a charging station available.
If the Volt is plugged overnight, like 11? hours, it will be fully charged from 110V. Then use HOLD mode on the freeway* to save the battery miles for the in-city portion at the end. I use the OnStar navigation basically to switch back to battery when I'm near my destination.
In case you haven't noticed, the gas tank is small, don't be surprised if you just put in a few gallons. And don't be surprised if the handle keeps shutting off-maybe it's just the one station I've gone to, but it seems the filler tube on the Volt is not at a good angle to just leave the handle in, it keeps shutting off from the fume detection whatever ya call it.
I run the AC always in ECO mode-well, COMFORT once in a while to cool off faster.
*Finally, learn HOW TO RESTART THE CAR (Which I haven't yet) if you mistakenly press the POWER button twice instead of the MODE button!!