The document provides examples of successful user experience design in both digital and non-digital products and services. It summarizes four case studies: 1) A single-point highway interchange that improved traffic flow with a centralized traffic light system. 2) An ergonomic potato peeler designed for people with arthritis. 3) A mobile banking app that streamlined the user experience of online banking. 4) A medical records app that gives patients easy access and navigation of their health information and appointments. In each case, user research, prototyping, and usability testing were key to fulfilling user needs simply and intuitively.