i think i saw a question recently from KiwiGirl - asking about "stateside" (her term) shelf-stable milk
if you're coming to Canada - here is a handy link
http://www.milkunleashed.ca/
note that this is a huge country and some of the stores listed are regional - I suppose Walmart would be the only nationwide - not sure if they're in Quebec
as someone who answered your question in the other thread that I can't find now pointed out - it's handy for RV'ers and cottagers who can't always zip over to Whole Paychq (much as sometimes we'd like to ; )
hope that helps