Mostly biking = good man.
I bike commuted year-around in MN, I forget how many miles it was. But it was approximately as fast as driving there. The road salt is really tough on 'em so I use disposable crappy old free mountain bikes when the roads are salty.
I'd review the mods list.
It's an awful short run time- many cold starts. Baaaaaad. Might not even want to do much engine-off when it's too cold since there won't be much heat or defrost available to begin with, and running the engine too cold isn't good either- for wear and for condensation building up in the crankcase. Also you are concerned about battery capacity with increased winter demands and engine-off. Maybe a battery tender plugged in at home could take care of any charging deficit.
So make sure it has a good block heater and engine blanket and grille block, and use them. A timer might be a good convenience for the heater at home in the morning. Metro did a wonderful experiment on block heater warm-up times; I usually shoot for between one and two hours, less than one not quite enough but better than nothing and more than two mostly heating the great outdoors and wasting electricity. Perhaps an insulated grille block would help even more to retain heat between work arrival and lunch or departure. Even so, NO IDLING except maybe when it's -30F.
Winter cold = higher rolling and aero resistances. In the city you may not be getting enough speed for aero to matter much. Stay on top of keeping the tires (over)inflated to your desired pressure, which I would suggest to be somewhere between 40 and 50 psi. Brush that foot of snow off too.
Run the thin winter oil.
You didn't say if it's garaged or not; garaging saves a lot of scraping and defrosting. Might want to put a safely positioned portable electric heater in the cab pointed at the windshield and on the same timer as the block heater, mainly for windshield defrosting. Kick the snow off your shoes before getting in and shake the floor mats out frequently- helps keep the humidity down and the windows clear. Crack the driver's window open a bit and direct your breath out that vs fogging up the windshield. Yes, that does make a difference when it's -40F.