$ nmcli device wifi connect wlan_ssid password your_password
By default on a 1366×768 display, the graphics elements were too big for my liking.
By default Ubuntu 16.04 ships with a Xorg configuration which is using the Synaptics driver.
$ nmcli --ask conn up id wlan_ssid
The default volume level is 100%. This method automatically lowers the volume to 30%.
Set your time zone in Control panel/Date and time
You can call this script from PowerShell with e.g.
filecopy.ps1 copy_source copy_destination.
Use the bolded apt-key command to add the GPG public key.