Since it's OOPSLA deadline day, let me remind everyone of the existence of Matt Might's Perl script for finding duplicate words in a text file: https://matt.might.net/articles/shell-scripts-for-passive-voice-weasel-words-duplicates/ I've been using this damn thing for like 15 years and it always finds something I didn't catch. I find the "weasel words" and "passive voice" scripts less useful, but the "duplicate words" one is great. Just found a "to to" and a "than than" in the paper we're about to submit.