I have a knife/sissor sharpener for my kitchen, used it for my sissors and it works great. The sharpener is one you hold in your hand, looks like a handle, EASY to use. Try this site, mine is the yellow one. My husband gave it to me as a gift, I think he got it from Lowes or HDepot for between $6 and $10. I use it a lot. Shop around it is well worth the price. you can do it yourself for the rest of your life.
http://www.accusharp.com/