I’m completely smitten by Tomboy, the note-taking application for Linux/UNIX. It’s quickly become an indispensible tool, some sort of instant notepad/scratchpad, and I use it all the time.
I’ve written about Tomboy before too, but lately I’ve come to rely on it a lot, especially with its reminder plugin.
I use Tomboy extensively for my TODO lists. Given its ability to link between notes, I create one note per task, and use one master TODO list, with links to each one. It’s also got simple text editing capabilities – the text strikeout feature is one I use with particular satisfaction!
One great feature of note-taking applications in general is that you don’t have to keep saving your notes – that happens automatically. Just type/paste and close the window!
The search feature in Tomboy can be hugely useful. If you know you’ve jotted down something but don’t know where, you can search through all your notes, not just the recent ones that appear in the drop-down list.