To give the op his due, I hate rules and regulations myself. Being Italian, and an old time Southerner to boot, I have a very healthy disrespect for authority and rule makers. And yet, I can understand why some of these irritants exist (whether or not I like them or obey them, it ain't nobody's business but my own). Think of it like this....if you have a tooth problem, it wouldn't be wise to go to an eye, ear, nose and throat doctor. If you need a lawnmower repaired, Lou's Electronic Store isn't where you need to be. It's probably as simple as that as to why things are broken down into categories.
As to your question, if it were me, I'd just bracket exposures and keep notes. But then I don't even own a flash, so what do I know?