Good evening everyone:
I'm heading to Paris tomorrow evening (!) for some time, and I'd like to buy a Navigo Mois card to last a month. I understand they cost 5 Euros and I wish to pay the 65 Euros to allow me to travel within zones 1+2, but I'm a bit confused as to how to obtain one.
I know that you're meant to go to a "guichet" to obtain one, but do you simply get it there and then? I realise that the night before going on holiday, one really ought to have sussed this out by now, but that's my scattiness for you!