We don't use canvas, we have polypropylene tarp cloth bags, and three different sizes of insulated bags. *
In any case, I have had SUPER-positive reactions pretty much everywhere, and I usually dive right in and bag my own before the checker has to lift a finger. Last time we were at Trader Joe's, the checker said "Wow! You're HIRED!" and even the mainstream grocers love them.

MAura
*
Our whole family is allergic to mold and high humidity is not kind to canvas - I have had bad experiences with canvas going moldy on me twice, once on the North Coast of Cali and once in Texas. Perhaps if we lived in the desert I'd feel safe with it, but I do not. I like breathing too much! 