Your post is pretty good however your statement under, "USAGES OF charged herbs". Specifically, "RULE NUMBER 1: NEVER USE THE SAME HERBS YOU CHARGE FOR ORDINARY COOKING. There is some culinary activity in spell casting but it is different to do kitchen witchery from ordinary cooking which revolves about eating to stay alive etc".
Charged herbs can be utilized in cooking and it is actually recommended to use charged herbs in any activity one utilizes herbs for. Charged herbs are simply herbs charged with energy. This can be the sun that grew them to the crystals you store with them prior to use.
The only time one does not want to use a charged herb for cooking or any other specific working is when the herb was charged for a different specific working. Such as if I charge an herb specifically for cleansing purposes of my home, I would not want to use the charged herbs for eating purposes. Charging an herb in a general way for the herb to be the best herb it can be for any purpose allows one to utilize the herb in any casting.
I rarely charge herbs specifically for one purpose. I charge mine in such a way that they can be used in any casting including those who some refer to as "ordinary cooking". Of course, please keep in mind that you would want food grade herbs to begin with as well. I personally don't buy edible herbs that are not food grade. The same is true for salt or any other edible items one can utilize in magical workings.