A friend of mine recently showed me a neat way to sharpen a knife. Use the edge of a vehicle's window glass. That's right...roll the window down, and run your knife back and forth on it just like you would on a whetstone. Use a little more pressure at first, ease off of the pressure when it starts getting sharp. I was amazed. My Spyderco (regular blade) with AUS-8 steel that is normally kinda hard to sharpen on a stone was razor sharp after about a dozen strokes.