Recently I've had a little bit of a pickle fetish. However, one of the things that is inevitable for us regular pickle-eaters is the difficulty in taking of the lid of the jar.
One tip I have is to run the jar under hot water. This way the lid will become easier to turn. This is because metal has a higher coefficient of expansion than glass does. Thus, as the jar stays under the hot water, the metal expands a tiny bit, and the glass stays the same (I also find it easier to use my left hand because it's easier to turn CCW with your left than your right).
The other tip I have would be to hit the gym and organize a forearm based workout session because without the hot water trick I've got just about nothing.
Good luck in your future pickle jar opening endeavors.