How many working sets, reps and exercises per body part do you like to do?

Music? Diet? Rest days? Lightweight & heavyweight days? What breaks the barrier people face when trying to lift heavier constiantly? 

Hey Marc, my question is, when going through a high volume powerlifting program, what kind of supplements would help my CNS recover? I feel sloppy and a bit distant after a deadlift and bench day, for example, and haven't found anything to pick me back up, other than  clash.