Does anyone know please whether they will accept Euros in Norway? I know it's not their official currency, but would like to know if anyone has used them there. Thanks.
Although you may find shops, etc. that will take the Euro, they will do so at whatever they are satisfied with - this will always be likeliest to favour them, not you. Using a credit card or local currency which you have bought at a fair rate through a money changer will always be best.