Originally Posted by
Accident
I just realized this!! If I can get the "1" day visa without too much delay, I think it'll be worth it. My biggest concern is getting on the wrong train on the return, are there service desks like the MTA in NYC?
I wouldn't worry.The trainsystem is super easy to use and the platforms are well marked with signs in japanese and english.If you'll go to shibuya as suggested earlier you can't mess up on the yamamote line as it makes one big loop around the city,so even if you get on it in the wrong direction you'll still get back to tokyo station.BTW the narita express also runs to shinjuku, wich is only 3 stops from shibuya(on the yamamote)so that might be little quicker.