Hi I have no problems using Euros in the tourists areas iassociated with these countries, but a word of caution, please take some low denomination notes I have been given change in local currency.
We were in Baltic & Fjords for 3 weeks last year - Denmark, Sweden, Norway, Finland, Estonia, Russia, etc - all took euro's, no probs apart from maybe a little newsagent where you wanted to buy a postcard - not a problem.
No.They prefer their own currencies, particularly if you are spending a small amount such as cups of coffee or postcards. You may suffer from the conversion rate you get and may receive change in local currency. For larger purchases, use your credit card. How would you react in a shop in the UK to someone who would want to pay you in Euros?
Not Sweden, the others are fine, just visited there.
Glad you asked that question as i have just booked for next year (2012.) i just assumed they would take euros .
You can use the euro, in markets, and tourist places, but will always get change with the local currency. Large shops I found prefer the local currency.
Just come back from Norway with Azura and found that despite being told otherwise and taking Krone all the places seemed to be happy taking euro's as well but with change being given in Krone. Everywhere was also happy with credit card, found many of the small shopkeepers and market traders were happy to give discounts for cash if you didnt want tax redemption certificates and these discounts were better than the saving re the tax.