We are back in dear old Blighty, and what a trip it was! Nearly four weeks on our third annual Interrailing jaunt, visiting seven countries - plus two solely to change trains. Itinerary as follows: Eurostar to Paris Lucerne/Luzern (train, 2 nights) Innsbruck (train, 1 night) Graz (train, 2 nights) Bratislava (train, 1 night) Timișoara…