I want to turn off bluetooth. It seems to be turned off already, but every boot it appears at the panel again.
Here is how it looks at Settings.
This might be useful: How to boot with bluetooth turned off
Specifically the answer by Stepbaer:
I found a how-to with a clean "workaround":
http://catlingmindswipe.blogspot.com/2012/05/how-to-disable-bluetooth-on-startup.html
Actually changing /etc/bluetooth/main.conf was enough for me.
InitiallyPowered = true
rfkill block bluetooth
to rc.local
did the job.