Here's another bit of gleaned writing advice, this one addressing the issue of manuscript length. I've heard it from several sources over the years:
"Keep it long enough to cover the topic, but short enough to keep it interesting."
Good general advice, but... When dispensed to me many years ago, this was referred to as "The Bikini Principle"; and I've also heard it referred to as "The Axiom of Skirt and Essay Length." Er, ahem, pardon me, but this packaging of an otherwise good piece of advice seems a little, well, dated at best.
So, smart people, what say you? Can we come up with a new image for the advice, one that gets us away from the female clothing/legs realm?