If I were to triple-space my novel manuscript so far, I would probably have 200 pages.    From Wordnik.com.  [ShunnCast #10] Reference

He wrote triple-space, breaking the story into many paragraphs, never hesitating for a choice of words.    From Wordnik.com.  [The Winning Clue] Reference

They triple-space all his drafts and things.    From Wordnik.com.  [Press Briefing By Mary Ellen Glynn] Reference