I don't know how many of you are aware but it was recently passed in all but 10 states I believe that retailers can now charge the customer up to 4% to cover the cost of accepting credit cards. 4% is roughly what most credit card companies charge to a retailer for the use of their service. Now you can see a "service" charge on your receipts of this amount.
Pay attention to your receipts because it's not mandatory so see who is and who isn't passing this fee along to you and save yourself the added expense!!