[linux-audio-user] [OT] First trip to Europe

Hello, all!

Me and my girlfriend are planning a trip to Europe for a month between
May and June.
It will be our first trip abroad, so please help if you can with a good advice.
Since it's not so easy to get out of here (russia), and I can't visit
all that great & numerous openlab's etc., one of the main goals is
"community building":
I'd like to meet (at least some of ) you, LADs/LAUs, in person.

Current plan is (yes, it's huge):
Moscow
St.Petersurg

--
Helsinki
Stockholm
Berlin
Koeln
Brussels
London
Paris
Bourdeaux
Madrid
Barcelona,Figeras
Genova
Milan?
Rome
Venice
Vienna
Prague
--
Moscow
There are two main questions
(lonelyplanet.com helps a bit, but residents can say much more):
1) what is the cheapest way to travel inside europe?
Bus? Airplane? If it's by air, how can we buy cheapest tickets? Which
company? How much days before the flight? etc. Or may be hitchhiking?
2) how hard is to find cheap place to sleep?
AND
Where can we meet YOU?
Sorry, we don't know exact dates as we are researching on european
visa (trip begins from Helsinki, since it seems the easiest way to get
into europe).
Sincerely,
Dmitry.