You ever think about this? When you go into a restaraunt, you are paying with a couple of twenties, and you're paying the fees for the guy next to you who is paying by credit card. As a merchant account holder, I know that typical merchant accounts charge 4-10% of the purchase to the merchant, usually around 7%! So, of course, the merchant has control over his prices, so he raises his prices overall, to cover those charges. But if you're paying by check, cash, or money order, YOU are paying for the guy who whips out his card. If you try to charge a fee for CC use, clients are disgusted and say: "They don't do that at other businesses!"
The dirty little secret is out. If you pay by cash, check, or MO, you are helping out the merchant to pay his fees. Not fair.
It seems to me that the only fair way is to set your prices with the fee figured in, then give a cash, check, or money order discount to the client.
It doesn't hurt to offer a break if a client purchases multiple knives at once, too!
Just a thought,
Jay