The Chantry Knife Sharpener
I've had mine for years and it's been a breeze to keep both my flat blade and serrated knives sharp. It's an actual sharpening device that delivers the perfect edge every time without damaging the blade like a grinding mechanism can. It's a simple design, compact and effortless, a few strokes through and you're ready to slice tomatoes paper thin. No motor, no cords, no special skills necessary and no excuse for dull knives.
Just Google and you can find a quick online source.