Gnome3

sudo add-apt-repository ppa:gnome3-team/gnome3-staging
sudo apt update
sudo apt install ubuntu-gnome-desktop

customize environment with gnome-tweak-tool

sudo apt-add-repository ppa:numix/ppa
sudo apt-get update
sudo apt install numix-gtk-theme numix-icon-theme-circle numix-folders numix-wallpaper-aurora numix-plymouth-theme

sudo apt install gpaste gnome-shell-extensions-gpaste

change keyboard shortcut of show history to <ALT>+v

use <SHIFT>+Ins to paste selected element

• https://extensions.gnome.org/

sudo apt-get install gir1.2-gtop-2.0 gir1.2-networkmanager-1.0 gir1.2-clutter-1.0 

• topicons plus
• system monitor
• Sound Input & Output Device Chooser
• OpenWeather
• https://extensions.gnome.org/extension/672/disable-screen-shield/
• https://extensions.gnome.org/extension/8/places-status-indicator/
• https://extensions.gnome.org/extension/570/todotxt/
• https://extensions.gnome.org/extension/1112/screenshot-tool/

pomodoro (concepts)

curl -L http://download.opensuse.org/repositories/home:kamilprusko/xUbuntu_17.04/Release.key | sudo apt-key add -
sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:kamilprusko/xUbuntu_17.04/ /' >> /etc/apt/sources.list.d/gnome-pomodoro.list"
sudo apt-get update
sudo apt install -y gnome-pomodoro
# restart gnome (ALT+F2 -> r)
# use gnome tweak tool to activate pomodoro

disable lock screen on suspend resume

gsettings set org.gnome.desktop.screensaver ubuntu-lock-on-suspend false