I love paperwork, so I always handle passport applications and stuff for us, and whenever I have to fill out my wife's stuff, there's that part about other last names, and I get super paranoid trying to remember which ones she's officially used (she doesn't even remember, or even have records sometimes due to the nature of immigrating), because between Latin America and the US pre- and post-citizenship plus getting married, it's kind of a nightmare to remember when there was a de something, an y something, or just one surname, or two surnames.

And then her parents are from another country with different surname rules, throwing a crazy wrench in things when she has to deal with her other citizenship documents, which adhere to that other country's rules.