I was taking a cooking class that was all about knives and part of it covered sharpening and honing them, which I found interesting but someone intimidating, especially with all the talk about getting just the right angle on the blade.
Finally, our instructor let us in on a little secret...you could get one of these and it might not be quite as good as a professional knife sharpener that is actually a master of their craft (as opposed to a butcherer or over-grinder of your knife blades), but for just a couple of bucks this pocket sharpener does a darn good job and is pretty dummy-proof.
I know you can buy these locally somewhere...I'm sure I could have hunted one down to save a few bucks over what I paid on Amazon, but to have it delivered right to my door rather than spending hours looking for one was really worth it. I had two really dull but good quality knives in my kitchen, and in less than a minute I had two really sharp and honed knives.