I take mine to a local knife shop that actually makes knives and he sharpens them for me at a $1 a piece.

I have the Tru Cut sharpener. I do the required 30sec on one side, then flip it over, 30 sec on the other, then flip it back for a further 30 sec. The blade is so sharp it will slice through wood. I always keep it nice and sharp, saves a lot of time than messing around with a dull blade. I never save a blade with a nick in it, it will never cut properly again.

I have the Tri-Sharp and have used it for at least a decade. I love it and when my blades have been sharpened several times and get old, I transfer them to paper cutting function. I recommend the Tri-sharp; I don't buy blades very often.

Make several cuts on aluminum foil. That's a cheeper method of sharpening your cutter

I love my Tru-Cut sharpener. I ordered mine online from them and bought the more expensive model. I have cut my blade purchases in half and never have to cut with a dull blade. I'm just very careful handling the naked blades.

I have not found the sharpeners to be worth the trip to the store to buy them, never mind the ridiculous amount of money they cost. I have tried 2 of my own and one of a friend, and none were in any way satisfactory.

I have one. Actually 2, because I mislaid the first. It works quite well when DH uses it and hardly at all when I do. The difference, I suspect, is that he puts more muscle behind it. He prefers that I buy the generic from jhittle.com