Our previous house had a single bathroom.
The one before that - yup, single bathroom.
Now, the one before /that/ was a townhouse. We had three! bathrooms. Well, one full and two half baths. It was SO nice to be able to go to the bathroom when you needed, and not when someone else's whim let you.
This may be a little TMI (too much information) but dammit, it's something I deal with day to day, so it's going here!