My One Weird Trick when dealing with recalcitrant jars is to put on rubber washing-up gloves to improve my grip. Doesn't always work, and the gloves themselves have to be properly dry for it to have any chance, but it can make that little difference which does the job.
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Date: 2014-11-24 01:06 pm (UTC)no subject
Date: 2014-11-24 02:10 pm (UTC)If that doesn't work, it's time to hit the lid with a wooden spoon to release the vacuum as mentioned elsethread. (The kids like this one.)
And if that doesn't work, it's time to go to the garage to get plumbing tools, or the hot-water-to-expand-the-lid trick if I remember it.