Answer by Rod Young:
Taking a dumb terminal, which was usually wired into a mainframe, and hooking it to a phone modem to hit BBS's.
Setting up a BBS in intermediate area that can call two locations that can't call each other without incurring long distance charges as a relay. Long distance is cheap now and we have so many other long range data options.
Clipping a 5 1/4 floppy disk so you could use the other side.
Getting 1 meg out of a 770k diskette because Amigo OS file system didn't have as much overhead as DOS.
Boot sector games on boot diskettes.
Old arcade games like breakout popped up when you boot.
You could play or hit a key and continue to boot.
The idea was if a virus overwrote your boot sector, the game would not work and that would be a tell.