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Look, I know I can't spell, but I love - absolutely love - punctuation. Punctuation, used correctly, makes thoughts more manageable, expressions clearer, and meanings concise. NOT thoughts more manageable, expressions clearer and meanings concise!
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Good God man, whats next a world wout apostrophes and commas where Cindys shoes and Cindies shoes are synonymous?
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Heresy from the Oxford Style Guide:
The comma
As a general rule, do not use the serial/Oxford comma: so write ‘a, b and c’ not ‘a, b, and c’. But when a comma would assist in the meaning of the sentence or helps to resolve ambiguity, it can be used – especially where one of the items in the list is already joined by ‘and’: