Here in Iceland it is customary everywhere to take your shoes off when entering a private residence. I don´t think I know anyone here who would not take their shoes off, without asking for permission to leave them on, or before specifically being asked/told to leave them on.
I remember another thread not so long ago about the same topic. It was a total eye-opener for me in regards to US habits.
I remember another thread not so long ago about the same topic. It was a total eye-opener for me in regards to US habits.



And in April you will find me hosting the flip-flop exchange.
Mark your calendars now. 

I guess "formal" just isn't us. We are more likely to have the laid back, wear your 'fat pants' and have fun type of get together.