TaskWarrior, sync'ed across several machines through inthe.am, isn't perfect, but it has made my life better. Start simple, as a to-do list, then add complexit

TaskWarrior, sync'ed across several machines through inthe.am, isn't perfect, but it has made my life better. Start simple, as a to-do list, then add complexity if you need it. The documentation is sufficient. Tagging, projects, and priorities are all interesting/useful.