Can't get the lid off of a jar?

If you are anything like me, jars give me trouble. I am a "klutz"... I fear dropping a jar and crash... splatter.... oh my I did it again.

Here are some hints to help you get jars open easier. Hold the jar upside down and pour warm vinegar around the neck. This is where the glass jar and the top lid meet. Twist.
Here is another idea... purchase one of those jar openers. They come in various types.
Sometimes I use a hand towel. I put one end around the jar and the other end around the lid. I twist in opposite directions.
My grandmother and mother tap the lid with the handle of a butter knife, then twist.

If you have any other suggestions send them to me. I will be glad to share them with others.