Somewhere in the craggy quagmire of my memory, I seem to recall that the nuns of my grade school days taught me that a P.S. (post script) is followed by a colon, i.e. P.S.:
Alas, the periods after the "p" and "s" have all but disappeared in our Tweet-crazed culture but I persist in using them, not wanting to call down upon me the wrath of my former and now surely dearly departed nuns. But what of the colon? Is this a non-memory of my angst-ridden Catholic education? It seems wrong to follow a period (a full stop, after all, that signals a new thought) with the contents of a post script without some intervening mark. However, I do admit that on paper it does look, well, clunky. And try as I might, I cannot find the usage anywhere (I may eschew Twitter but I do Google (the content provider having given birth to a verb).
Doth the lady punctuate too much?