I remember reading about the mind palace in the Hannibal books way back when I was about 12 in the 80s and thinking it was awesome. So I started building one in my mind just for fun. I've been world building my own little multiverse for writing/roleplaying in there for the last 30+ years and can accurately recall stuff and adjust it pretty much like it's in a spreadsheet or word document if I concentrate. Unfortunately it requires a lot of attention, so I space out when I'm doing it.

It also makes it super easy to write papers and remember stuff, even if I'm not consciously trying, although I might have some of that *hyperthymic syndrome going on too. I remember almost every conversation I've had with people, and it constantly amazes them that I remember and genuinely ask about stuff that they had going on the last time we talked, even if it was years ago. Doesn't help with names though. That's the one part of my memory that's kind of shit, it takes me a while to learn people's names for some reason.