Alex frequently forgot about important appointments. Although he had always used paper calendars in the past, his colleagues convinced him that he should keep a calendar on his smartphone. Alex started using an electronic calendar on his smartphone, but he also continued to use paper calendars. If an appointment was scheduled when he was at his desk, Alex would use his paper calendar and if an appointment was scheduled when he was away from his desk, Alex would use the electronic calendar. Soon, things got worse. He did not believe that the technology had made his life any easier so he went back to using only paper calendars