If you are not sinking as many putts as you think you should or having too many three putts during a round you may want to adjust your stance. Try an open stance which is simply your left foot dropped back of your right. Jack Nicklaus and Lee trevino used this stance and were two fo the best putters that ever played the game. The open stance allows you to set your eyes behind the ball and on the line of the putt. It helps you sight the line much like looking down the barrel of a gun. It also promotes swinging the putter back low to the ground. Many recreational golfers tend to pick the putter head up abruptly in the backswing and strike down on the ball. This can send the ball off line quickly.  A low takeaway helps you hit up on the ball giving it a truer roll!