How to open any jar ever

After watching today's More...Just a PSA. I'm a weak woman (just physically lol) and there has never been a jar I haven't been able to open. You don't need hot water or any tool -all you need to do it hit the edge of the jar lid on a hard surface. Give it a quick "bang" on the counter or floor and it pops the vacuum seal. The key is to hit both a part of the rim and a part of the top. Don't use the back of your hand as that won't be hard enough. If you hit it and the jar won't open, then it didn't break the seal. Hit it again as when you do it right, it's super easy to open the jar.