I switched to XFCE a while back as I'm not getting on with Gnome3.
However, today gnome-panel insists on appearing in my XFCE session thereby covering up the XFCE panels

Plus, it loads some programs and terminals by default.
I've tried deleting as many things I can find in ~/.config which seem to be related to sessions, but gnome-panel and the default programs still keep appearing!
Please can someone tell me two things:
1. how to kill gnome-panel in my XFCE session? I don't want to kill it completely as other users use Gnome.
2. where on earth are the default session settings stored for the programs that are appearing?
Please help. This is driving me mad!

TIA