The question Leerzeichen vor Einheiten made me think whether typographical questions are welcome. To me they feel slightly off topic because they don't deal with the language itself but how it is expressed. On the other hand every country makes up its own rules.
I'm interested in this topic very much so I really wouldn't mind if they are allowed. I'm just interested what others think about that.
Some examples could be:
- proper spacing in situation X
- what dashes to use when
- should you use indentation when beginning a new paragraph
A related area is:
- how should letters be written (header, subject line, footer)
- how would I write a job application, a CV (e.g. do I have to provide a picture, my sex, my religion, the names of my parents, their jobs... I admit this one's rather fuzzy)