Just curious.......How many people "cheat" on your structures? Do you use blank walls (unpainted/undecorated) on the backside (unseen) walls of your buildings ? What other "shortcuts" do you use to save time or materials? I know people that use sheet styrene for unseen walls and then use the original walls to kitbash new buildings. In my downtown area, I'm not painting windows between structures or anything that can't be seen. I'm interested in ideas.