I did a lot of door to door campaigning as a Republican candidate this fall. It got so I could make a pretty good guess about the political sentiments just by looking at the house as I walked up to knock on the door.
Manicured green lawn, a BWM or Prius in the driveway, carefully maintained house, figure a Democrat. Shaggy lawn, with a few weeds and some kids toys, a pickup truck, some do-it-yourself home repairs in progress, figure a Republican.
I did better in Bethlehem, which has a lot of residents who work for a living, than I did in Franconia, which has a lot of wealthy retired folk.