This is an interesting little gem to try. Line up on your break shot as usual. Then, stand up and move closer to the table. Keep your shooting arm straight and pivot at the shoulder to break. You will notice that pivoting at the shoulder instead of the elbow gives you a tremendous amount of leverage without any extra effort/power on the shot. It takes a bit of getting used to, the toughest part is staying in line on the shot while you stand up. Give it a try and see what you think.
 I have been informed this is similar to the “long-lever” concept by Colin Colenso, video is here. Thanks to sfleinen for pointing that out!