This story is for you if...
• You're a regular walker with a double-strap bag
• You tend to lean forward on your backswing and fall back on your downswing
• You don't know how to turn correctly
You have trouble swinging in balance.
If you walk most rounds, use the bag you sling over your shoulders to instantly fix your balance problems. With both straps around your shoulders, set up in your normal address position with an iron and make a half-speed swing without a ball. If you sway to the left at the top or hang back on your right side in your follow-through, the bag will immediately let you know: the bottom of the bag will sag toward the ground if you do the former, and the top end will do the same if you're guilty of the latter (probably dumping your clubs in the process). Continue to swing until the bag remains in place against the small of your back. If you don't walk, make a few swings before placing your bag onto your cart to make sure your tendency to sway instead of turn doesn't destroy your round.