those are the "easy changes" that the hordes that commute 20, 40, 60 miles daily are not adopting. why? (apathy?That's great. We did the same and even found a place where our kids can walk to all schools (k-12) and sports fields (though I admit the kids angle is more for my sanity than the greater good).
Those are easy changes though.

choosing the dingy house in town over the mcmansion "only" 20 miles away is a tough choice, but people (speaking generally here) seem to just not get it.