A terminal and a folder full of similar file names. Open the file the task names — but don’t type the whole name: type its beginning and press Tab, and the terminal completes as much as it can. If several files start the same way, Tab adds only their common part, and when there is nothing left to add, it lights up the files that still match. Enter opens the file. Every key is a stroke, like in golf: par is the fewest keys possible, and fewer strokes earn more points. Classic: a new folder every three files. Live folder: new files appear before each task, and a beginning that was enough a moment ago may not be any more.