What's the best way to travel across Sweden?

[CuttedUpPear]

...and by that I mean the most economical
Gothenburg to Stockholm (and back)

TIA

Train or bus?
Or hitch hike ?

......tumble weed .......

Its 3 hours on the high speed x2000 train, so I think it would be a very long bus ride. If you prebook and choose the time care fully, less than £85 at a quick look.

I think train for that journey. Some parts are easier to fly between, I've found . It's a very very long country!!

The train might be quite expensive for 2 of us. I might look into buses.