This was a question that was given to use during one seminar. The lesson was on utilization of resources by the marketing people. Indeed, it seems that it is a trite question because increasing sales means adding more customers. But if you will review the list of customers, most of them are buying from several suppliers which means if they buy from you and also from Supplier A and B then probably you have a chance to increase their order from you and lessen their order with the other suppliers. What else do you think can are the ways on how to increase sales without getting new customers?