Your dull kitchen knives
Varying types of knife sharpeners (telling you what kind is what this Instructable is about)
Something to cut
If your knives are really dull you will first need to a get course sharpener with sharpening blades forming a 45° angle. Mine looks like this. I just walked into a store one day, there it was, and I bought it. Couldn’t have been more than $5, but don’t ask me where, because it was more years ago than I care to think about and my mind being the sieve it is, I just don’t remember.
I found this one at Amazon.com:
http://www.amazon.com/Smith-Abrasives-CCKS-2-Step-Sharpener/dp/B00032S02K/ref=sr_1_7?ie=UTF8&qid=1324282399&sr=8-7. This is a nice, course and fine, sharpener at a cheap price of under $5.00. Run your dull knife through the course side 5 times. This course sharpener will take off any burrs and smooth out some of the knicks.