The next big challenge on the horizon for UX in application design is not about the small screen—it’s about going large. Large monitors keep getting cheaper – and higher resolution – so many users working with SaaS and enterprise applications today have multiple monitors on their desks. It is frustrating for those users when applications do not scale well to a larger size, wasting screen real estate, and not taking advantage of the additional monitors to support side-by-side comparisons and multi-tasking that are common to knowledge workers in many domains. As UX design consultants, we are increasingly seeing opportunities to improve user experience and productivity for business users by utilizing multiple monitors. In this presentation, we discuss new UX design patterns and challenges that arise in software and web-based application design for multiple monitors, illustrating them with real project examples.