Wikipedia4epub is a set of commands that constructs an offline e-book from articles on Wikipedia in EPUB format. There are commands to create an EPUB book from the articles from Firefox history file, or create an EPUB book from the given article and its children. It is useful for people with offline e-book readers.
oFEd is a simple desktop application allowing you to format your text with BBCode text formatting and saving it to a text file. It's useful for people who write long tutorials and posts in forums and hate being logged constantly in the forum while writing. With oFEd you have a fullscreen editor and almost all the features needed to write your tutorial, overview, or other document and post it later when you are ready and want it.