Changing the default file manager away from Nautilus
Nautilus is opening the desktop, making the experience miserable under i3 when all you're trying to do is 'view files in directory'. XFCE's Thunar is lightweight, and it doesn't try to create a desktop window. To get apps such as Chrome to handle "open directory" commands using Thunar, teach xdg-mime about it: $ sudo apt-get [...]