I'm howling in my office. I so dearly want to send this piece to those of my colleagues who routinely use one (or more) of these expressions.
There are a few that were left out (most likely for brevity's sake; there are hundreds of examples of this kind of folly), among which is one of my favorites: mute point.
If it's a mute point, why do you feel the need to state it?
Add your examples in the comments. Feel free to pass along the link.
After all, we have to nip this kind of behavior in the butt.