The major changes to the Rules Of Golf have been well flagged like the 3 minute ball search and dropping the ball from knee height.  Let’s look at another equally important change that comes into effect on January 1st 2019.  You can no longer put a club down on the ground to help take your stance and you cannot avoid a penalty if you do so.

Rule 10.2b  ‘A player must not take a stance for the stroke using any object that was set down by or for the player to help in lining up his or her feet or body, such as a club set down on the ground to show the line of play

If the player takes a stance in breach of this rule, he or she cannot avoid penalty by backing away from the stance and removing the object.