Productivity apps are aplenty on the iOS App Store, with new apps being added daily to allow users to squeeze the most out of their days. Some of us are able to knuckle down and whizz through growing workloads while others need a more structured layout with the required tasks and chores being clearly defined for the day ahead. There are many different time management philosophies, but there is only one of which I'm aware of, and it is based on the methodologies of a former U.S. President.