Switzerland might be new for you - and since Switzerland is not a member of the European Union, you might want to consider the following information.
Money
Euro payment is not officially possible in Switzerland. However you can pay in Euro almost everywhere (if you're willing to accept a not-so-good exchange rate). Make sure you exchange some Euros to Swiss francs. At Demodays/Buenzli, we try to make everything available to you in Euro too!
Power
Switzerland doesn’t have the standard plugs for power! Check out the picture to see how the plugs look in Switzerland. If you think your plugs wont’t fit, bring converters! Euro plugs will fit, Schuko plugs won’t. At Demodays/Buenzli, we'll have a few converters available for borrowing.
Highways
On Swiss highways, you have to pay road charge (at the border, CHF 40.-, valid one year). Olten is rather close to the German border, so if you’re coming from Germany you might consider not to pay the fee and avoid highways.
Drugs
Unlike many people’s believe, drugs, and more specific cannabis, are not legal in Switzerland. The Demodays Party Rules do not allow any kind of hard drugs or cannabis to be consumed at the partyplace.