I've been using my Small Shop Bags (Iberian and Steel) as shop bags for a couple of weeks now, but never for groceries until yesterday. There was a bagger on my checkout line, and as she reached (absently) for the bags, she stopped as soon as her hand touched the fabric. I swear, she petted the bag, and flipped it over to see the label. She then proceeded to tetris-pack each one to the limit. When she finished, she said, "Wow, I really like these bags -- they look small, but you can fit SO MUCH in them!" Hearing that, the checker came over to look, and we had a little TB Admiration party right there in line!