Help me do the comma

[Pyrrho]

But back on topic: is there an official authority on English or AE grammar where one would find these things?

http://www.mla.org
http://www.chicagomanualofstyle.org/home.html

Incidentally, for those who are curious, putting two spaces after any kind of punctuation is wrong, according to those two sources, among many, many others.

Fine links, but you are wrong in your statement:

http://www.mla.org/style/style_faq/mlastyle_spaces

Double spaces after a period (or other sentence-ending punctuation) is traditional, and the way I normally type.


As for a site like this one, the writing is informal, and typographical errors are common.  So someone having a double space somewhere that it does not belong does not mean much, unless there is some consistency to it.

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Two spaces?! Is that something people do?

It's something I was trained to do when I learned to type in the early 1980's.  Two spaces after the end of any sentence.

Yeah, it's wrong.  I still do it.  Hard habit to break.

You are wrong; it isn't wrong to have two spaces between sentences.  See:

http://www.mla.org/style/style_faq/mlastyle_spaces

So there is no need for you to change the way you type your sentences.