On Thursday, 9 July 2015 19:23:27 UTC+1, Mike Clarke wrote:
There's not much point labelling plugs unless the other end of the lead
is permanently wired into the appliance. It's possible that the lead
from the plug that you labelled "PC" a few months ago is now plugged
into the back of the printer.

If you label *both* ends of the lead then such nastiness won't happen.

Owain