specki we used to check the writing on toilet cleaner bottles too, as some were ok for use with septic tanks while others weren't.
Bags , I think some people go a bit OTT with cleaning, disinfecting etc, although I am possibly borderline OCD about hand washing when handling food!
I have wooden chopping boards that are sort of segregated, in that there is one that onions & garlic are chopped on (you can chop other things on them, but I tend to throw a bit of a fit if onions or garlic are chopped on the other boards , if you know what I mean). I also have a granite slab permanently on the worktop, yes, it does blunt knives but they are easily sharpened.
A chef friend of mine was so paranoid about raw poultry that he would only handle it wearing plastic gloves!