Nautilus (Ubuntu's file manager) and bookmarks

In the very old days, the Ubuntu's file manager's bookmarks were stored directly as invisible file in the home folder ($HOME/.gtk-bookmarks). Since 14.04, they have been hiding two levels deep in $HOME/.config/gtk-3.0/bookmarks.

And if you wonder where the Nautilus scripts are, they are nowadays at $HOME/.local/share/nautilus/scripts/.