GNU Emacs as a Desktop widget
GNU Emacs has a lot of in-built features which can enhance your computing experience while acting as a desktop widget .e.g. calendar, scratch pad, clock (external) etc. Even when you are not using it as the main application, it can prove useful as a companion application. In the image, menu bar, tool bar and scroll bars have been turned off.
You might want to make it sticky (appears in all desktops) and maximized vertically using following command (you can get <win-id> using xwininfo command):