

Do before coming to Sweden?
Make sure you have spoken with you bank to make sure your debit/credit card works.
Learn?
Knowing basic local geography is always good. If you are planning on driving, study the road signs and rules
Bring?
Depends on the season, I have been in the same exact spot both in summer and in winter, in the summer it can be up to 34-35C, in the winter it can go down to -32-34C
Public transport is excellent, trains can easily take you to Norway or Denmark, we have regular ferries all over the Baltic sea, so you can easily get around.
Everyone will speak good english, though if you already know some german that will help you in the supermarkets.
Feel free to ask more specific questions
Thank you!
I will check it out!