Saving money on the mainframe is still one of the most important goals of companies running z/OS applications. There are many ways to achieve this: some require a deep technical analysis whilst others can involve complex organizational issues. However there is something simple and very important that you can do to keep the software products bill under control and hopefully reduce it. You should check if the WLC monthly peak occur on businesscritical days and hours, is due to business-critical systems and workloads, is due to workloads which could only run on standard CPUs. In addition WLC costs can be reduced by exploiting: possibility offered by new hardware and software technologies and pricing options; IBM licensing policies. We’ll discuss these opportunities