Thanks, i’ll take a closer look at the details in future

I’m also in Switzerland - can you please point me to some (swiss) stores which sell DRM free books?

Stop right here citizen! We Swiss have a great cuisine! Cheese, potatoes, cheese, chocolate, cheese! Whats not to like?

I (german speaking part of switzerland) actually did learn it this way (90+2, nonante-deux) when learning french in school, in addition to 80 (huitante). Though we were told about the french way 420 and 420+10 etc.