About the only place you see typewriters today is Mad Men or Harlan Ellison's desk. You, however, may be one of those people who sees them when doing the laundry or unpacking their Christmas decorations. If you've got a typewriter stashed away in the attic or basement -- and especially if you use it regularly -- Frank wants you to let him know. Send Typewriters Around the World a letter, a real letter on paper and everything, and tell him you're still clicking and clacking away on one.
Well, today is 10/10/10, or as the Romans would say, "XXX". Three Xes (as opposed to two Xes) had long been a standard "end" indicator for wired information like telegrams and news stories, and today it has been corrupted even further to three 'hashes' at the end of press releases.All of those are corruptions of the original telegraph code. XXX is 'thirty' in Roman numerals, and according to a 1860 book of morse code shortcuts, 30 means 'no more - end'. Part 1 and Part 2 of the shorthand are online, too, and might start showing up in Tweets if enough people learn about it.