Stockholm Pass

While I agree that you need to do the math for the places that you plan to visit, you don't have to see a ton of places for the card to be worth it. For example, Skansen is 160 SEK, Stadshuset (City Hall) is 100 SEK, and Vasa Museet is 130 SEK. Just those 3 sights which many people visit add up to 390 SEK. If you tack on two days of transportation and one other museum like the Nordiska, you've covered the cost.

Talk!

Pardon?

I think that's a typo. The Swedish word for thank you is tack. I only know this because our daughter is on an archeological dig in Sweden right now. I'll add my tack too. We plan to be in Stockholm next summer.

Autikorect.

I didn't even connect that "talk" might be tack! - Ingen orsak! Anyway, there was a post before mine from someone else that got deleted so it might not make sense in context. A 24 hour SL card (only for transportation) is 115 SEK and a 72 hour card is 230 SEK. The Stockholm Pass includes transportation.

The SL commutter train connecting with the Stockholm Central Station (twice an hour, 38 minutes) is also covered by the Stockholm Card but there is a 75SEK per person fee airport access fee, each way. It beats the Flygbussarna Airport Coaches price of 99SEK per person. Also, a boat tour is included with the card. You can buy the card at the tourist information booth in the arrivals area and have it validated for immediate use use. The SL train platform is between Terminals 4 and 5. Easy.