Well I'm giving viable solutions right here. When looking in the supermarket many items are wrapped in plastic. Uneccesarily so. When a bell pepper is found in the store 'naked' lying next to one wrapped in plastic, this shows it's completely unnecessary to package it.

When I see people taking groceries home in 12 plastic bags, instead of just bringing a few cotton ones.

When I see people using plastic cups and straws instead of reusable ones.

Plastic bottles to drink water instead of refill glass bottles.

So the solution is simple. Just use less plastic, where it is completely not needed :)