Help me do the comma

[One Above All]

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.

Tradition is irrelevant, but you should look for the reason behind the tradition. Double spacing was used with uneven font types to make them look more uniform. That is, to make it look like they only had one space between sentences. Also, this:
http://www.chicagomanualofstyle.org/qand...orTwo.html