Many people believe their sunglasses are polarized just because they are dark. Folks that bought Ray Bans thought they were polarized. Ray Ban used neutral-density lenses in the vast majority of their sunglasses(hate to break it to some).

Polarirized lenses are the only thing worth using when fishing. Now golfing is another story. Polarized are the LAST thing you want to use when golfing as they cut all the glare on top of the ball and make it very difficult to find. Also it can cut down on reading contours.