This has reminded me of the awe felt by 12 year old me when someone showed me that you could use a hole punch to make a hole in the corner of a single sided 3.5

This has reminded me of the awe felt by 12 year old me when someone showed me that you could use a hole punch to make a hole in the corner of a single sided 3.5" disk to double the capacity. Adult me is now going to go look into how or why that worked.