Detailed directions

Someone sent me directions to their place the other day.  How wonderful they were.  They told me what bus to catch.  And from which stop.  They described which way to turn after I got off the bus.  How many streets to cross.  How to find their house using landmarks I could follow.  And, this person is sighted.  I was unbelieveably impressed.  They e-mailed them to me and I put them on my ipod and followed along as I traveled.  They were perfect.  How wonderful good, precise directions are.