- Zim Wiki – My favorite writing program. Great for journals and notes, and it saves the whole structure in plain text files so you can access them directly if you like. In every Linux distro software center that I’ve checked.
- FocusWriter – in the Software Center
- Scrivener – I have never used it extensively, and it’s discontinued for Linux, so best not to get attached, but links to the beta release from 2015 are here.
- QOwnNotes – in the Software Center
- Cherry Tree – in the Software Center
- PS Notes
I have a special addiction to pretty Markdown editors. My favorite is the Mac only, closed-source Ulysses (sorry). So the quest continues for the optimum thing. But these are lovely, just not the full writing suite that Ulysses is.
- UberWriter – the project might be dead, but it was such a nice little Markdown editor.
- QTodoTxt – based on Todo.txt
- RawTherapee – A nice photo editor for for detailed color and lighting adjustments. I like that I can save presets and apply them to each photo quickly when I’m touching up contrast and such on a bunch of photos. – In most software centers
- Pithos – A most excellent Pandora music player. You still have to go to the web site to do major station editing, but Pithos doesn’t play the ads (don’t tell anyone). – In the Ubuntu Software Center at least.
- KMyMoney – A very nice, solid finance program. In the Ubuntu Software Center
- Open Source Astrology – if you have a spiritual streak like I have and need a bare bones astrology program, this is great. It draws a nice chart, but leaves it up to you to know all the symbols.