Seriously, a compass can be very useful. I hunt and walk through the woods...now with a GPS. As a test, in unfamiliar terrain, I put the GPS in my pocket and just walked through the woods. Later that day, I looked at the track I took and was amazed. the track looked like this:
___O__O___
where I actually did two seperate loops. These were thick Maine woods without trails so the trees and rocks forced me to adjust course.
Now the other day, at twilight I was on some unfamiliar city streets on the East Side of Providence trying to get to US-44...I did a loop. I knew I had to head east but at the time, I could not tell the direction the sun was setting.
In this case, a compass would have kept me heading east and I could have eventually crossed the seekonk river...but I was unsure where I was.
/Bill