Sweden is moving towards a cashless society. Here is what you need to know:
Get a credit card (Visa or Master Card)
Make sure you can pay with your pin
Many places do NOT take cash anymore
To be able to use Swish, you need a Swedish bank account, but you will definetely survive without Swish!
=> Therefore: We recommend you to use PayPal instead: It's for free, secure, and super easy to set up and use!
Most banks require you to have a Swedish ID card (you need a passport and a personnummer)
A few banks might allow you to open an account just with your passport.
Get a European health insurance card
For extra coverage (your insurance might only pay the same amount it would in your home country) get an extra travel insurance
Students at a Swedish university or college are insured during school hours and during the journey to and from school by Kammarkollegiet
More information about insurance is provided by the universitys homepage