Multiplying network manager

Sometimes, after you have added nm-applet to your autostarted apps, you get multiple network manager
icons appearing on the panel.

If this happens, look in your home directory under ".cache/sessions". Edit xfce4-session-*:0 and remove
all the Client* sections that refer to nm-applet.

Now you need to renumber the remaining client headings and decrement the number in the Count= line right at the end. Finally logout, unticking the "save session for future logins" check box.