No Impact Man: Question

So I am watching No Impact Man (now available to watch instantly on netflix). Some things I think that we dispose of are necessary (i.e. toilet paper) but one thing that has ALWAYS bothered me is the plastic bags for produce at grocery stores. I saw a few glimpses of like brown cloth bags in this documentary that he was using to shop with at farmers markets and whatnot. I was curious if anyone had heard of where you could buy something like that. I also think it would be another amazing thing to sell at Kroger and Publix along with the grocery bags they sell.

I think Ill write a letter... :)

Let me know if anyone knows what I am talking about and where I might go about purchasing a few! :)

Thanks!