I always get the small bucket. I work on swing fundamentals mostly. If it's before the round, It's mostly working on loosening up my joints.
I mostly work on the short irons. Actually all of mine are "short". I make sure I take proper divots. I work on tempo, keeping my head still, shifting weight, lag etc. At the end, I work on hitting my driver. I work on shaping the driver left and right. If I drive the ball well, I score well.