Hello Ajeh, I'm very new to forum and know very very little of my admin. I have someone that does most of the stuff behind the scenes. But I have a similar problem with shipping costs. My products are mostly all small and only ounces. I see from this thread that there is a way to set up shipping cost by using the USPS rates into the cart? Would that give the correct shipping for a total of mulitple items at the end of the sale? I have been refunding extra money for postage to my customers for almost a year now! Any help would be greatly appreciated.