The Trustee has no sense of direction either. I never know whether Point X is west or east of Point Y, but if I've been there I have a visual memory of how to get from X to Y.

However, I hope you will not emulate The Trustee's most maddening GPS-related behavior: when the pissed-off little voice says "Turn left!" sometimes he goes right JUST TO SEE WHAT HAPPENS. No wonder the little voice sounds pissed off.