Also rack all 15 balls and break, then shoot all shots with left, re-rack/break shoot all shots with right, re-rack/break shoot all shots with top, and re-rack/break shoot all shots with bottom.
Rack all 15 balls and break, then shoot each shot so the object ball stops just before going into the pocket. This teaches you how hard/soft you need to hit the ball to make a particular shot (more so with a cut shot, less so with a full ball hit). This comes in *very* handy when you need to barely tap a ball to get it to go into a pocket or for "blocking a pocket" safety shots.
Cue ball speed control. Shoot cue ball 1 diamond distance, 2 diamonds distance, 3 diamonds distance, 4, 5, etc. To far rail to stop, to far rail and back then stop (lag shot), 3 rails and stop. 1 rail + 1 diamond, 1 rail + 2 diamonds, 1 rail + 3 diamonds, etc.
Draw shots - Cue ball and object ball 1 diamond apart. Draw cue ball back 1 diamond, 2 diamonds, 3 diamonds, etc.
Follow shots - Cue ball and object ball 1 diamond apart. Follow object ball 1 diamond from contact point, 2 diamonds, 3 diamonds, etc.