What coins are valid in Sweden?
Could you please enlighten me on the coins that are considered valid and acceptable for use in Sweden? I'm curious to know which currencies are officially recognized and widely circulated within the country. Additionally, I'm also interested in whether there are any cryptocurrencies that have gained popularity or are being actively used in Sweden. Could you provide me with a brief overview of the valid coins in Sweden, including both traditional currencies and any cryptoassets that might be in circulation?