I hang two balls between the points of the corner pocket. If you're on a tough table where the two balls don't fit, you can either try to stagger them or get a stacking ball and place one on top of the other.

I place the cue ball about 1-1/2 diamonds out from the long rail. I aim just less than full on the 5 ball (the left ball, when you're down on the shot) with tons of follow. If the cue ball doesn't follow at all, either try to get more follow or hit the first ball a little fuller. If the cue ball follows toward the long rail, try moving the cue ball closer to the long rail.