Using sitefinity we get a lot of admins getting "Enter happy" and generating obnoxious amounts of <p> tags or empty divs, or something...

I'd love a filter such that when they save it'd go through and clean up (remove) the empty crap content.

<p>some text</p> <-- FINE
<p></p> <-- GONE
<p><br/></p> <-- GONE
<p>Final bit of text</p> <-- FINE
...etc