Harvey at Bad Money speaks word punctuation to power:

The purpose of punctuation is to reproduce the pauses and vocal inflections of the spoken word, thus allowing the writer’s intended meaning to be made as clearly as possible.

It is a servant, not a master, so use it any way you wish, as long as it helps you get your point across.

Now, let him try to convince my mother-in-law, the former English teacher. Good luck, Harv. I’ll be behind you with a dust pan, ready to collect your pieces.

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