Drive by far. Being a recent convert rather than having grown up in the bike culture, I'm at a few disadvantages. Work is eight miles away and there is no shower at work (and I tend to sweat when I ride), so bike commuting is a challenge for me, I ride half the time in good weather when I can carpool in with Mustachian Buddy. Combined with a bunch of side gigs where I have to drive, my mother and Costco 15 miles down the road, most of my friends out of biking range, it's really more a matter of where I can save fuel where I can. I definitely drive less than I used to, however. I average about 10,000 miles a year by car.
I was asking myself where would MMM live in Richmond and that's a tough call. I'd say the Byrd Park area where I grew up (Google Garrett Street Richmond Virginia) because of its proximities to numerous parks and easy bicycling to grocery, library and miscellaneous shopping in Carytown. I could see living there again one of these days, but I really love the house I am in now and doubt I will move any time in the near future.