Most task management falls into three categories
- Task managers: To organize the things we need to get done
- Email: To communicate with others
- Calendars: To manage our time
However, these are all just ways of expressing ‘events’ in some calendar; emails are just tasks and tasks are just calendar events.
In fact, most of today’s email clients are built around the concept of Inbox Zero, which effectively turns your email inbox into a todo list with public write access.
See also: time