@meganL
I am in India, so I don’t know if this will be useful for you. My childhood was way before India’s economic liberalisation, and a big part of it was in metropolitan areas.

We got a lot of dry goods packed in paper or in thin cardboard boxes (unlaminated). Plastic was rare. Liquids mostly came in glass bottles. For a lot of our regular food purchases, one carried one’s own cloth bags. Home-delivered milk came to you in bottles, and (you left the previous day’s bottle outside the door).