Not sure if this could be a bodybuilding or powerlifting question or maybe it could apply to both. I've seen a few places where people who seem to know what they are doing have split workouts out so per body part its low volume but make up for it with higher frequency.
One example was CT's 3 lifts a day which may not be practical for everyone to make it to the gym 3 times a day. Another is splitting it over 2 days, the idea is moving the 2nd half of your workout when your more fatigued to the next day when your fresh, able to do more weight/reps/etc. Has anyone done that with success or currently doing it?