When I went to Czech Praque it was really nice as there were virtually no chain retailers that I recognised apart from one H&M no dirty McDonalds or anything like that. What I did notice though, the same thing happened in Germany as well, all bottled water apart from in hotels was sparkling, which I think is gross! We didn't see any supermarkets either, instead you went to your butcher, green grocer etc and bought real locally grown food. Which is something I hate about the UK, most people can't be bothered to do anything than go to Asda, Sainsburys etc.
The locals appeared not to be polite as Brits, for example if I bump into someone in the street, I say sorry and so does the person I bump into, but in Praque you had to leap out of the way of other people.
Border control, not one of us had our passports checked upon entering Czech!!
The streets were dirtier than ours as well, which I found quite surprising as ours are bad enough.