[quote]Is there a "correct" way? [/quote]As a matter of fact there is. Two spaces after a sentence is a holdover from the days of [url=http://en.wikipedia.org/wiki/Monospaced_font]monospaced fonts[/url] used on typewriters. With the introduction of proportional fonts used in word processors, web pages, and everywhere else now, two spaces after a sentence is now arcane. No typing or English teacher should ever be requiring two spaces after a period. If they do, feel free to refer them to the Chicago Manual of Style, where it is NOT recommended except for monospaced fonts (which nobody uses anymore). See Sec. 2.9: "Like most publishers, Chicago advises leaving a single character space, not two spaces, between sentences and after colons used within a sentence, and this recommendation applies both to manuscripts and published works."