Has this ever happened? It's the holidays. You're traveling. Perhaps you're in a nice hotel or Airbnb, or even tent camping. You've got a can of food you need to open but no can opener. What to do?

While you can cut through a wire's sheath with any Swiss Army Knife's titular knife (or any knife for that matter), not all models include a bottle opener with the notch crucial for stripping.

After only a minute or two of trying the sharpener, I had the scissors cutting again like they hadn't in years,” says one ...