The first “hack” I ever came across doubled (!) the capacity for a 5.25 floppy, and could be performed with a hole punch. I learned it from my elementary school librarian in 2nd or third grade. While I didn’t have much use for it at the time, I recall being thrilled by the prospects it opened up… not for doubling disk space (mind the density!) but as an approach to exploring the world. To go beyond consensus and find the places not on the map.

This floated into memory last night as I was settling down to sleep, and it made me curious to hear about other people’s first exposure to such innovation.