As a longtime city dweller with limited space, it's hard not to be weary of single-use kitchen gadgets, like this pineapple slicer. Being a person who frequently doles out advice about major kitchen purchases, I discourage friends and family from buying gizmos that are simply going to take up more precious kitchen space in today's too-cluttered homes. Not to mention, cutting up a pineapple really isn't all that much trouble. But unbeknownst to me, a pal went out and actually bought one of those pineapple corer things. He then proceeded to show me how he could transform the tropical fruit into gorgeously uniform rings of gold. Less than a minute later, I was sold on why I need one, too. Click through to see why.