It depends on what store I am going to. I bring them to Aldi and Costco but if I am going to some of the other stores I don’t. I do reuse the plastic bags when I get them.
You’re right, the world is full of plastic waste that is contaminating everything including our water. I try to reuse plastic bags anyway I can. Some of the stores around here that still use plastic bags have receptacles where you can bring your used bags and they will recycle them.
Reusable shopping bags was one of the best wins the world has ever implemented towards preservation of our planet Earth. I am always thrilled to use my reusable bags because I understand that it is very good for the environment.