In reply to paulh.0776:
Good idea, that'd be a nice little debrief to add at the end of future posts. Thanks!
For reference, I got return flights from Stansted to Skavsta super cheap (about £40+ baggage fee). I booked them mid-December for a trip end of January. Skavsta is a pain in the ass because it's so far out from the city centre but there were regular coaches for about a tenner in each direction.
I then met my climbing partner in Stockholm Arlanda airport (he lives in Uppsala so it was easy to get to for both of us). We hired a car here - the whole trip almost got canned because they wanted a £700 deposit on the car. Fortunately we managed to scrape enough funds to put this down but it required some grovelling phone calls! Probably could've been hired cheaper elsewhere but it was logistically more straightforward to get it from the airport.
The drive was boring as hell, it's on the same road pretty much the whole way. About six hours with traffic and fuel stop. Fuel was pretty cheap from what I can remember, plus the petrol stations had free coffee which was a godsend!
Wouldn't know anything about B&B - we slept in the boot of the car...