I Agree. I keep a plastic grocery bag full of plastic grocery bags under my sink for when the need arises. They get more than a single use in my household. I find it silly how we went from paper bags to plastic bags and now back to paper bags again. Paper (trees) were always a renewable, recycleable, and rapidly decomposable resource. For what ever reason plastic became the standard when it should have never been considered. I guess it was just cheaper at some point. Hopefully we will get back to using paper and recycled paper in place of plastic.

I use bags that come from products I essentially have to buy, such as bread bags, bags that hold hardware from new furniture, etc. Just my take.

I don't use grocery bags, nor do I accept them from stores.

I'm less so saying "bags are bad" and more so saying "let's try not to use bags when it's clearly not necessary". There's no reason to take a plastic bag when you've got a 1 inch item. A lot of the things you listed can be done perfectly fine with a reusable bag or container, which are these days pretty cheap.