[oldmanpants]

Here in small-town BC, I buy local milk at a chain grocery store in glass bottles with a 2 dollar deposit. the clean empties can be returned at the checkout when buying your groceries. the milk is great and the bottle process works.

I think it's mostly the other (more expensive, and 'radical' changes to the milking process) challenges to do with keeping the cows with the calfs that were what killed this attempt.