Can't Open the Jar?

Photo courtesy of  dno1967b on Flickr.com

Having trouble opening a vacuum-sealed jar?  I did last night with bottled marinara sauce.  Pickles, salsa and jelly jars all give me a fit.

This tip is from an episode of the Rachael Ray show:
Turn the jar upside down and give the lid a good rap on the counter.  Flip it back over and the jar will open with ease.

No more boiling water,  hot water or waiting!