Read your writing out loud to yourself, carefully observing the punctuation. You won't become Hemingway, but you will find the most obvious flaws in your writing.
I have that habit, though not because I read my stuff out loud and use pauses as an indicator for comma placement. It just reads better to me, with having "semi-separators" that I don't quite feel justify a separate sentence, but help with the flow of what's being said.
Excess commas seems to be an especially US problem. Here in Norway one of my sons had Norwegian teacher of English who studied in America. We often had to point out that half the commas she wanted in his writing were unnecessary.
If you have an office rubber duck, reading your report to the duck is a really good way to get feedback.