It's so difficult eh? Good on you for making moves to reduce your plastic use.
The main, (and a few minor), things we do are:-
Reuseable shopping bags
Make our own bread
Buy milk from a farm in glass jars
Grow and preserve as much of our own food as possible
Use a refillable fountain pen instead of disposable pens
When my disposable razor runs our I'll look at replacing it with one that takes exchangeable blades
Don't drink bought fruit juice
We bought a soda stream to make sparkling water at home...to which we can add home made fruit syrups
Home cooked meals
Take a travel cup for takeaway coffee
Metal drink bottle of water for outings.
I have a basket in the car into which I always have some of the above so that I don't have to think about them every time I go out