In uk.d-i-y, Mike Tomlinson wrote:
In article , Mike Barnes
writes

Which is why, for a right hander, the best
thing to do is to turn the jar upside down. And stop as soon as you
sense the slightest movement!

In other words, hold the lid and twist the jar.

I'm not sure I agree with that. You're holding the jar and the lid and
you're applying an equal twisting force to each. Until the lid actually
moves, any imbalance is imaginary.

--
Mike Barnes