Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Keeping track of your to-do items and tasks should be simple, but often the software that people use for those purposes is anything but. Many such applications are also calendars, reminders, appointment managers, and more -- in other words, overkill. By contrast, todo.txt and Tux ToDo try to keep it simple. They take different approaches -- one's a command-line tool and the other is graphical -- but do the same thing: make managing your many tasks simpler.
In the computing world, there are few things simpler than a text file, and todo.txt, developed by Web developer and writer Gina Trapani, leverages that fact nicely. As the name implies, this utility keeps your to-do items in a text file called todo.txt. A bash shell script called todo.sh does the heavy lifting; a Python script is also available. Using todo.sh, you can add and delete to-do items, update them, mark them as done, and prioritize them.
If working at the command line isn't your thing, then Tux ToDo is worth a look. It's a GUI application, but one that is refreshingly small and spartan. When you first fire up Tux ToDo, you might notice that it looks like a stripped-down version of the Palm Desktop software for Windows.