Personally,
I use Morse code. I find it quite useful, despite being obsolete. It's always fun to play with obsolete things...
(
The Duke Of Your Fingers feels like an old man... mmm, tasty!,
Sun 14 Apr 2002, 21:47,
archived)
I'm planning to build my own enigma machine...
...for those really critical posts.
(
chaotic_illuminator proud spacehopperist,
Sun 14 Apr 2002, 21:54,
archived)