
This is one of the best note taking apps i have come across yet. Very useful note editing and tree like lists to store, save, and back up your notes or to-do lists.
KeepNote is designed to be cross-platform (implemented in Python and PyGTK) and stores your notes in simple and easy to manipulate file formats (HTML and XML). Archiving and transferring your notes is as easy as zipping or copying a folder.
With KeepNote, you can store your class notes, TODO lists, research notes, journal entries, paper outlines, etc in a simple notebook hierarchy with rich-text formatting, images, and more. Using full-text search, you can retrieve any note for later reference.
Features:
* Rich-text formatting.
* Hierarchical organization for notes.
* Full-text search.
* Inline images.
* Integrated screenshot.
* Spell checking (via gtkspell).
* Auto-saving.
* Built-in backup and restore (archive to zip files).
* Cross-platform.
http://rasm.ods.org/keepnote/The one attached is the older version. Called takenote but name changed along with program. So use link above for new version.