Etm, an acronym for “Event and Task Manager,” is a very useful calendar and planning tool. However, it is a bit cumbersome to learn and far less convenient to use than alternatives. It has an intuitive task-entry format, once you learn its plain text shorthand. Etm stores events, tasks and other user-generated notes and data in text files. You can create, modify and view entries using two primary methods. The command line option is more suited to users with a flare for Unix-style applications on the Linux desktop. Most other users no doubt will find the cross-platform PyQT-based GUI a more workable option.