I remember many offshore fishing trips during the late '80's, in which we would leave from Freeport or Galveston with a compass heading, usually about 110 degrees, fish several rigs throughout the day, then reverse our heading, to go home, by adding or subtracting 180 degrees. On the return trip we would look for landmarks to guide us safely back to our launch. Most trips where 30 to 45 miles offshore; thus; out of sight of land, but we were never concerned for returning safely. I believe I could probably do that now, but I seem to have become reliant on today's technology.