https://live.gnome.org/GeditPlugins
$ sudo apt-get install gedit-plugins
https://github.com/dtrebbien/gedit-trim-trailing-whitespace-before-saving-plugin
$ git clone git://github.com/dtrebbien/gedit-trim-trailing-whitespace-before-saving-plugin.git
$ cd gedit-trim-trailing-whitespace-before-saving-plugin/src
$ mkdir -p ~/.local/share/gedit/plugins
$ cp * ~/.local/share/gedit/plugins
$ sudo apt-get install curl # since curl is a dependency for the script
$ ./install-ctags.sh
https://github.com/Quixotix/gedit-source-code-browser
$ git clone git://github.com/Quixotix/gedit-source-code-browser.git
$ mkdir -p ~/.local/share/gedit/plugins
$ cp -r gedit-source-code-browser/sourcecodebrowser ~/.local/share/gedit/plugins
$ cp gedit-source-code-browser/sourcecodebrowser.plugin ~/.local/share/gedit/plugins
https://github.com/gmate/gmate
$ sudo apt-add-repository ppa:ubuntu-on-rails/ppa
$ sudo apt-get update
$ sudo apt-get install gedit-gmate
Go to Edit > Preferences
View Tab: Check all and display right margin at column 80.
Editor Tab: Check all except the backup copy of files before saving. Tab width is 2 and autosave files every 5 minutes.
Font & Colors Tab: Uncheck use the system fixed width font. Editor font: Monospace 10.
Plugins: Add whatever you think will be helpful.