Now ... WHERE am I?

The problem of commuting between two homes (Nashville and Fort Myers) is most noticeable in the middle of the night ... when I have to get up to pee.
You know how you can usually do this in pitch-black darkness because you've memorized the path to the toilet, right? Well, this becomes a problem when you're half asleep, and you can't remember which house you're in ... and you stand there, semi-conscious, your eyes closed because you don't want to fully awaken ... trying to remember where in...