I keep track of my spending with Quicken. It is hard to keep track of cash. For that reason I use my credit card every chance I get. I've heard in the past credit card companies charge the vendor to use their services. That is why some places have been slow to adopt or still don't take credit cards. Recently a cab driver told me they take something like $1-2 each time it's used in his cab. I'm sure that is a special case, but this certainly drives up prices and stores have placed credit card minimums to make it worth their cost. What really upsets me, if this is all true, is that basically we're paying credit card companies to use our own money. I know ATM's do the same thing which is why I try to avoid the ones that charge. I'm fundamentally opposed to this. Is this true? How does it work?