Who needs rhetorical questions?
Even IF a mixed metaphor sings, it should be derailed.
Puns are for children, not groan readers.
If you've heard it once, you've heard it a thousand times: Resist hyperbole; not one writer in a million can use it correctly.
Use the apostrophe in it's proper place and omit it when its not needed.
Understatement is always the absolute best way to put forth earth shaking ideas.
Use words correctly, irregardless of how others use them.
Kill all exclamation points!!!
The passive voice is to be ignored.
One should NEVER generalize.