Do we know each other well enough for me to ask you a personal question? I hope I don't offend you by asking.
Are you a light or heavy punctuator?
I understand that comma usage is a matter of personal preference and that not everyone is comfortable talking about such a delicate matter. But, well … maybe it's time we had this conversation.
Which are you?
Don't be ashamed to be one or the other. Either is acceptable. Really. You'll notice I've used only one comma so far, although now I've used two, and I guess I could have dropped in one or two more. Rather than "Are you a heavy or light punctuator?" I might have written, for example, "Are you a heavy, or light, punctuator?" So now I've used seven.
Maybe you've been avoiding the question because it makes you uncomfortable, or maybe you're not even sure what a light or heavy punctuator is. Either way, I can help you. (That makes nine.)
Put the commas where you think they should go in this sentence: "Over time I noticed certain errors in comma usage and after I recognized a trend I compiled a list of rules."
If you thought the sentence was fine without commas, or if you put one comma between usage and and, you're a light punctuator. If you punctuated the sentence like this, "Over time, I noticed certain patterns in comma usage, and, after I recognized a trend, I compiled a list of rules," you're a heavy punctuator. And if you punctuated the sentence like this, "Over time, I noticed certain errors in comma usage, and after I recognized a trend, I compiled a list of rules," you're something in between.