How many floors do you put into most of your home builds?

Multi-story houses look impressive, but I like to be able to find my Sims just by looking around. I also favor smaller lots and larger households, so one story often isn't enough. I like living/everyday activity on the ground floor and bedrooms upstairs.

Whether or not the house gets an attic or basement depends on the build. My farm house has a finished basement, my asylum has a basement and an unfinished attic, but those are extras.