Love a semi-colon.
Love a pair of em-dashes (yes, I know), though actually I use the space—en-dash—space formation these days to match with my single quotation mark*.
And on this WIP, I’ve finally given in and allowed brackets too**.
I also have a single occasion in the WIP on which it would very apt to use a footnote*** but I haven’t decided if it’ll pass the first draft yet or not.
https://zirk.us/@grammargirl/114780005280908908
*If you pay attention to punctuation in trad-published books, and why would anyone, you might notice a general pattern of US = double quotation marks and em-dash, UK = single quotation marks and spaced en-dash. I was AU mix-and-matching, but the wrong way round (AU books sometimes use double quotations but en-dashes) until I couldn’t take it anymore
**Funny how the subconscious brain works: my POV MC is quiet and keeps a lot of secrets, OF COURSE HE THINKS IN BRACKETS…
***yes, a Terry Pratchett reference