If you start the xfconf daemon like this: $ /usr/local/lib/xfce4/xfconf/xfconfd
..then thunar settings are saved across thunar exit/restarts, but I don't know where.
Unless you are a fan of xfce4, I'd use one of other file managers suggested above.
Edit: settings in ~/.config/xfce4/xfconf/xfce-perchannel-xml/thunar.xml