I did grammar school, so we had:

• Dutch (our native language)
• English
• French
• German
• Classical Greek
• Latin
• Chinese (optional course)

Dutch and English were all through school, the other ones you took for 2 years and then picked two languages to follow through on, one of which had to be Greek or Latin. I did German and Greek.

I’m sorry but is this really a tip? To find out how much filament you have, you weigh it? Who’d have thought.