Had about €5 in a prepaid credit card ready to buy bitcoin back when that got you a couple hundred of them. Website didn’t like the prepaid credit card, so I used it to buy something else (Runescape membership I think?).
Also gave up on Bitcoin mining after a few hours because I didn’t see the point back when anyone with a reasonable GPU could mine.
Realistically, I would’ve sold the moment this stuff would’ve become worth about a hundred bucks, but it’s nice to imagine what could’ve been.