Drives me nuts that I wasn't able to track that down.
]]>I am more ambivalent about the question than my comments and voting record might suggest; my initial gripe is that the question is attracting off-topic answers, which do not stick to what the question asks for. They may be of interest to the questioner, but that strikes me as a different thing.
I don't have anything against the question per se, although it is on the softer end of the spectrum, so others might disagree. But it strikes me as being an example of an MO question that is easy to answer badly, where "bad" answers get upvoted, and where people might be adding poor answers months from now.
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