I remember spending an afternoon studiously plonking out my GC [1]. I may have even included it in an email signature at the time. Man….blast from the past.
Brought to you by a light discussion at work of creating a unique identifier for every developer based on their positions in the various geek religious wars (vi or emacs, *nix or windows, Firefox or IE or Chrome or Opera or what-have-you, tabs or spaces, etc). Assign each facet a set of prime numbers. Add the primes and you get a unique integer. It shouldn’t take more than, what, 32 different facets?