Finnish and Swedish are the official languages of Finland, with English being widely spoken in various degrees by all people in the major cities and even the outer villages. Because Finnish is isolated in the "family tree" of world languages and Finland is a small, relatively recently independent nation, learning and speaking English is of both economic and practical value. The Sami people are the only indigenous people of Europe and they have their own language, which is beautiful and rarer to hear in the larger cities.
Finns use the euro, as several years ago Finland become a member of the European Union. The euro is slightly stronger than the U.S. dollar. Sometimes I say "this costs ten dollars and five cents" by accident and my friends correct me, "ten EUROS and five cents." Thankfully, after a month here, I've been making that mistake less often!
Finns don't drink bottled water as the tap water here is clean, cold and pure enough to drink from any faucet. Finns are concerned that bottled water has toxins that leach in from the plastic. They have no need to buy water because their environmental regulations are strict enough to keep their national water supply pure. In most stores, however, you can still buy bottled water for about 2-3 euros.
