If you have a job that keeps you staring at a computer or sitting down all day then you are a candidate for a tight neck and the swing faults that result
Sam Snead thought that the absence of tention and target awareness where critical in the swing so keep your eyes on the target and club suspended in the air
Practice putting with your wedge forces you to hit the blade of the wedge directly on the equator of the ball, which is exactly where you want to hit the ball with your putter too