Re: Change foreign currency in Bern
If you're from Norway, have someone from Norway pay your Norwegian cash into your account up there, and then transfer using currencyfair.com
Changing cash is a guarantee to get the worst possible rate. After all someone has to deal with the cash for you, and they charge royal fees to do just that.
Option B: try to find someone who wants to travel to Norway, and exchange cash with this person at the mean rate. This cuts out the middle man and guarantees the best rate for both of yee.
Option C: Pay the fee @ SBB.