A cross-platform media player with many features such as frame timing, MKV chapters and subtitles. It is a responsive video player with minimal layout customizable with themes. A good alternative media player to VLC since it can handle almost all the media formats as VLC, but using much less resources.
"A disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote server where you do not have an entire graphical setup available, but it is a useful tool even on regular desktop systems. Ncdu aims to be fast, simple and easy to use, and should be able to run in any minimal POSIX-like environment with ncurses installed."
A program that generates a ASCII art of a cow with a bubble containing the specified message. I provide the Wikipedia link since at the moment the link to the author's homepage results to be unreachable).