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A comment on A single line to 3 cashiers is ~3x faster than a separate line for each cashier. Parent comment

Re:A single line to 3 cashiers is ~3x faster than a separate... by philwelch on Thursday December 08, 2011 @03:30PM (#3330982)
Well, this is embarrassing: I remembered that story from somewhere, and it turns out somewhere was another Hacker News thread: http://news.ycombinator.com/item?id=2007818
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