N830MH
You will be able to get a glass or jug of tap water at no charge (and refills) with your meal in all the EU countries.
If you want to have bottled water you will have to pay, although there are some places where they DO offer free refills of tea/ coffee/ soft drinks.
Eastbay - In all my travels in Europe - I have never been charged for jam/ butter etc - most hotels these days offer buffet breakfasts where you simply help yourself. The rip off is in posh restaurants where you do need to order vegetables and / or salads with your main dish and sometimes even a sauce.