Sharpen a Knife With the Bottom of a Mug

A dull knife is more dangerous than a sharp one, because it slips. If you don't own a sharpener, flip over a heavy ceramic mug. That rough, unglazed ring on the bottom works like a fine sharpening stone.

How to do it

1. Set the mug upside down on a damp towel so it won't slide.
2. Hold the blade at about a 20-degree angle to the rough ring.
3. Sweep the blade across the ring from heel to tip, like you're slicing a thin layer off it.
4. Do 8 to 10 strokes per side, alternating.
5. Wipe the blade clean before you use it.

It won't replace a real sharpening, but it'll bring a tired edge back for tonight's dinner.