Landon pulled from his art background along with his PB&J-making prowess as a dad to create the PB-JIFE. The long, stainless steel blade has a curved tip specially designed to reach into all the contours of a jar and scrape the bottom, sides, and rim. But PB-JIFE is not just for when the jar is almost done. The strong, extra-broad blade is sturdy enough to stir peanut butter, natural nut butters, jams, thick oils, and other spreads, too. And it can deliver an ample portion to an eagerly awaiting sandwich with just one swipe. It’s one of the most helpful knives around—jar none.