Training goals
Also being able to open that one pickle jar without the neighbor kid laughing at me.
I will never be able to open that one pickle jar without the Xelayan kid laughing at me.
Bottle opener. Or spoon, even. Just barely lift the edge of the lid to let in a little air.
Knive in jar lid side, wiggle until it bubbles.
Hold it upside down and strike it with the underside of your fist. It lets air in like the knife method while looking badass.