I see a lot of comments arguing that it's not "worth it" to spend dozens of hours to "get into org-mode" when there are "intuitive tools" such as Evernote or Trello or Todoist etc. What some are missing is the fact that low barriers to entry sometimes turn into barriers to growth at a later stage. After (!) one has sunk thousands of hours into them. I used to keep my academic notes in Evernote and it turned into hell…
There isn't a single piece of software that has replaced as many other tools, or simplified or otherwise benefited me as much as Emac+OrgMode.
OrgMode is what I now use for:
- journalling
- time-tracking
- project management
- various almost-literate-programming tasks
- calendaring, to a very extensive degree
I could probably spend a good few paragraphs explaining how making a note in my 'knowledge base' file can be given a due date so it shows up in my calendar, etc., but I'll just say that Emacs+OrgMode has effectively replaced:
- iCal
- DayOne (personal journalling)
- Toggl
- Journler
- OmniFocus
- Reminder/whatever-app-is-on-my-android-phone
- and probably a few more