Now you're talking. I just use the iron concentrations in my nose to find my way.
Sounds like me. I'll be driving with my fiancee and do say something like "I'll think we'll go this way" and turn down some strange unknown (to us) road. Her usual reply is "You better not get us lost." I don't get lost.
I find its always useful to understand the numbering schemes of the U.S Highway and Interstate systems also. I've tried explaining it to my fiancee several times, but she doesn't get it and gives up.