I do not add anything to my sales for people using PayPal. I do not inflate my shipping to cover Ebay fee's or PayPal fee's so if someone decides to send me a check instead there is nothing for me to deduct. If I was adding extra for the cost of doing business then I would feel the need to deduct it. Over all, it averages out in my cost of doing business by the people that use paypal and those that don't.

Lee