Personal "inviolable rules"
Do you have any when it comes to sewing in general, or piecing/quilting in particular?
My "rules" have evolved over time and experience.
There are things that matter to me that do not seem to matter to some other sewers - I admit to cringing when I see what they are doing (or not doing) - but I am trying very hard to keep my "other viewpoint" comments to myself.
Two of the things that are high on my list - washing (which includes soaking in hot water for a couple of hours) all washable components before cutting and straight grain lines (where feasible). I've learned to watch for off-grain prints and processing that gets the fabric off grain.
I've learned that some things can be "worked around" - and some things "are what they are" -
Example: Most musty smells can be washed or aired out. Moth ball scent is - as far as I know - there "forever."
Do you have any - what others may consider - "quirks" or "unreasonable requirements"?