Currency: 1 Krona or 1 SEK
1 USD = 6.94 SEK (070406)
1 EUR = 9.29 SEK (070406)
Exchanging: Go to Forex, you will find it in every bigger city or on the internet www.forex.se
There is also smaller exchanging places like: Exchanges.
Using Credit card is not a problem and the "ATM:s" in Sweden are called "Minuten" or "Bankomat". You can also take out money in normal food stores, but they have a high level of 300-500 SEK.
Tipping: you don't have to tip. But if you are sattisfied with your dinner/service then you tip. It's normal that you tip 10%.
When you pay, you will always get all the money back. And it's up to you to leave the tip on the table or directly to the staff.
Coasts: Big Mac 29 SEK, 1 liter of milk 7,50 SEK, Snickers: 10 SEK
Bargaining: Is not common! You can see it in bigger citys, but the are not hot-tempered.