National Punctuation Day

[Slava]

Too late for this year, but perhaps someone will remind us next year:

http://www.nationalpunctuationday.com/

[Perry]

Here is a very funny quote about commas.

The older I grow, the less important the comma becomes. Let the reader catch his own breath.
-Elizabeth Clarkson Zwart

[Philip Hudson]

Does anyone know the rules of punctuation? Are there any rules? I juts throw in punctuation at random and seldom get called down on it.