I have been looking for such an item after seeing a similar item on the PBS television program 'Everyday Edisons'. An inventor there had created an item later branded as 'Citilug'; however, I could not (and I still cannot) find this particular item anywhere. Then, one day while at my local kitchen supply store, I had asked a clerk there if she had such an item. What she had was this orange/gray plastic 'One Trip Grip' grocery bag holder which looked as if it just might be 'the answer'. Since it was the last one that her store had left (they no longer carry this product) and since its actual retail packaging was missing, I was able to buy if for only a few bucks. I used it only two times until it became obvious that its design was just too 'flimsy' for carrying other than just a few lightweight items; i.e., chips, bread, cookies/candy, marshmallows (heh...heh), etc. Problem: It has a tendency of actually separating (coming apart) whilst carrying a (grocery store-sized) plastic shopping bag containing only a few canned food items, or a bag containing a few frozen food items, or a bag containing a gallon milk jug (only weighs about 8lbs I believe), etc. Heck, anything lightweight, I can just carry the bag myself without having to utilize such a specialized carrier. So, I will continue my search for a more suitable/durable replacement (made from either solid plastic w/ no moving parts, or better yet from metal)...cheers.