Ticket machines do not accept credit cards issued by Russian banks. The good news is you can still buy tickets for Arlanda express at Visitor information center with card or cash.
Nice, but baggage drop is the slowest ever! And people have checked in already. Been sitting for half hour having roughly 25 people in front... 8 more to go.
Be sure that your mobiles devices r fully charged before coming here. The managers of this airport must be using fire smoke signals to cmunicate since its impossible to find a plug to charge batteries
For international travelers, Make sure you arrive at airport 3+ hours early if you care about looking around and shop. The process is not optimized for look around after going thru custom.