A frikkin beer in Oslo costs 5,50€ - 8€ WTF!! but I just spent 11€ altogether. 2€ for three postcards and 9€ for a "Norwegian Prince" including tip (see ferry photos). Oslo is beautiful, but very expensive.
I ate so much on the ferry and in the hotel, though. Buffet and a luxurious meal w/ soup, duck and mango whatnot dessert (and a chocolate cube that was complicated to eat). Norwegian food: salmon (yummy!!!!) and prawns... *drool*
The ferry was hilariously luxurious and when I got in, I thought I was in a fancy shopping center. Turned out to be rather boring when you don't want to spend extra money... I got a cabin for myself when the other four girls had to share one (two girls per cabin). Well, can't divide 5 by 2 w/o odds!
It's weird, I was away 5 days and when I got back to Friedrichshafen, I already felt like a stranger. I think I get used to new situations too easily. I don't think I mind sleeping in hotel rooms :P.
I also liked Kiel. I can totally feel the East-Frisian/Northern German in me ;)