As Indians we did the following and still a non-negligible population follow these:
We used Banana leaves instead of plates.
We used Shikakai for our hairs. Shampoos were unheard off. Pure Coconut oil was used. No creams or sprays.
The serving laddles were made with coconut shells and bamboo sticks. Not metal. The vessels were also stone pots or earthern pots.
The daylight was used to its fullest. The houses built had good cross ventilation.
Hand held fans (Pankha in Hindi and Visiri in Tamil) were used. No air conditioners.
Neem tree twigs were used to brush the teeth. No tooth pastes.
For grinding purposes, the tranditional grinding stones were used. No mixies or grinders.
Henna/Mehendi/Marudhani was used. Nail polish weren’t used.
Fresh vegetables and fruits were used. No cheese/frozen products.
Every locality had a cow barn. The cows were milked at each and every doorstep depending on the requirement. Thus arose no questions about transportation, packaging etc., The cows were allowed to graze the fields freely.
Curd was made at home. Not bought in stores.
Fresh cheese (paneer) was prepared at home. Cheese was unheard off.
Naan, roti, chappatis, rice were the staple food. Porridge was consumed for breakfast or other dishes based upon the staple grains. Bread/cornflakes weren’t known to us.
A refrigerator was never needed to store food. Food prepared on a day was consumed the same day itself. In summer, drinking water was stored in earthern pots which kept the water cool.
For packaging groceries, old newspapers and jute were used. No plastic sachets.
Why then have we changed now? 
Everybody is welcome to contribute to the list.
