Re: Random stuff that you've owned for over twenty years and STILL use
Twenty years would make me 16, and anything of value I left at my dad's place when I moved out. I'd say my stereo? but then again I've moved to an all-in-one-box receiver. I'd say my record collection, which legit has been kicking around in some form for the last 20 years, but my computer audio collection goes back to 2005 (and some of them date from that long ago!) I have a ton of books in the closet that I've never read but bought on impulse. We all have "that" bookshelf. Individual books, sure, go back 20 years.
This is not at all what you asked for.