Originally Posted by
PurpleTurtle
I don't bother to wear a hat either except every winter I try to start carrying it to keep my head protected from cold rain and snow, but the funny thing is I keep leaving it behind before the first day, of the first trip.
If they make the hat mandatory I might be losing a new one every trip.

It's cause you carry it only in winter that you lose it. Do it everyday and you'll be golden.