Well said. I do something similar -- I live someplace with a bit more breathing room that's bike friendly and walk friendly for some basic things, and I never take my car into any city center.

> Make city centers less car friendly and denser to discourage car use, improve walking infrastructure in the suburbs (more sidewalks/bike trails).

To put it a bit more concretely: Remove street parking in cities. Expand sidewalks. Build more public transit and bike infrastructure. Create light rail with parking lots outside of cities so you can get in without a car. Let people use cars as before in rural middle-of-nowhere america, and mostly the same in the suburbs (lower speed limits and build more sidewalks and connecting paths, so you can walk between neighborhoods).