Did you know we now allow you to attach images to your comments? Please only use your new powers for good. This feature immediately bore fruit, as reader Gloria Kelly commented and loaded an image to this 2007 Weekend Project video about making a messenger bag out of plastic grocery/trash bags. Here are the details (image above) on her bag:

I thought the tutorial was quite clear. In fact, I made a grocery tote bag today. It took me about 4 hrs from start to finish including ferreting about for the bags and re-doing the handles which were a bit short first time round. Now that I know the process, the next one will be a lot quicker. My husband has already put his order in for one ;o) My tote used up 20 supermarket bags and is slightly larger than a supermarket bag. It’s not the most stunning bag in the world, but it’s serviceable and strong. The fused bag “fabric” resembles the plastic tarps you can get in the $2 shops, but not woven, obviously. I didn’t have any stuff-ups fusing the bags. I used the cool end of the wool setting on my iron, since there is no rayon setting, and I used baking paper which I guess is the same as parchment paper, to sandwich the bags between when ironing.