Thank you for the info

If you plan ahead of time you can have access - at a cost - through international freight forwarders in the international forwarders building next to Passenger Airport location. Giving a quote is not possible as this is an A LA CARTE service which can be delivered according to size and number of luggages. You might immediately get right quotes by calling a few of them.

I think in Switzerlnad, plastic wrap or shrink wrap  luggage  is not allowed, because the must be able to easily access the luggage if 'chosen' to do so.

so this is not provided in CH, and if oyu do it yourself, i think the airlines cant / allowed to check your luggage in. But ask the airport your flying from , and get the rules.

As said previously only air freight forwarders might do the extra cellophane wrapping but no idea as to cost... As Dave pointed out it is not customary and can be arranged only after Swiss customs clears with "OK" on departing luggage. You better check with Swiss Customs before proceeding .

Zurich offers this service so I would not think it is not allowed.

http://www.bagsafesystem.ch/html/home.html

I had a look on the Geneva Airport website and no service is mentioned (but neither that it is not allowed).

If you have a bit of time, you could do it youself with a couple of rolls of clear wrap per bag from Migros or Coop. Just leave the handle(s) free.

And you say you'be been an English teacher...