"By contrast, reusable metal straws and canvas bags require something like 10-100x the energy and materials to manufacture, and need regular cleaning to avoid s

"By contrast, reusable metal straws and canvas bags require something like 10-100x the energy and materials to manufacture, and need regular cleaning to avoid spreading disease. So unless you use them many times, they end up being worse for the environment. I lose them much faster than that, and have better things to do with my attention than remember to bring bags with me everywhere I go, so I just use those old-school plastic bags whenever I can." This is not a valid argument. A bad habit should not be a justification for a devious behavior. I would even argue it is easier to bring your reusable container of choice when going shopping, and if that habit is really formed, then you wont be able to exit your home or car without it, because something will seem to be missing. Take for example the backpack or "granny cart". They are much more comfortable to use when compared to lugging around many plastics bags around your hands, and the granny cart is much better for your back.