Norway is a train window that does not get boring, a fjord that makes language feel small, and a price tag you were warned about. Oslo is design and a harbour. Bergen is weather and alleys. The Flåm railway, the Trolltunga photos, the Lofoten light — they are all real, and they all want a plan.
It is expensive. The supermarket picnic, the cabin kitchen, and the free hiking are the strategy. The landscape does not charge admission. That is the Norwegian trick, same as Switzerland's, with more water.
Summer is the midnight sun and the crowds on the famous rocks. Winter is the aurora, the dark, and a Tromsø that knows what it is doing. Shoulder seasons are cheaper and still ridiculous to look at.
Take the train where you can, the ferry when you should, and the car only if the islands demand it. Norway is a public-transport country that happens to look like a fantasy novel.