How do you keep track of your tasks as a software developer? Perhaps your team uses a Kanban board, or issue-tracking system. And personally you might have a calendar, a to-do list, or even a personal productivity system such as Getting Things Done. There are a lot of productivity apps you can download. But there is one app that hardly ever shows up in productivity app reviews. An app that keeps you in a state of flow and makes you very productive: good old Windows Notepad*.