What are some plastic use reduction ideas

Plastic is a pollutant that won't easily degrade. However; its versatility can't be dismissed and its not easy to get away from its usage in our day to day lives. We can however optimize and reduce the usage. 
1) Invest in a solid reusable grocery bag made out of non plastic material
2) If you don't have your own reusable grocery bag please insist your grocery store to bag your groceries in paper bags
3) This may be a surprise to you but the inner lining of canned beverages is plastic. So getting canned beverages may not be a 100% plastic free experience it's a much effective one than having the same beverage in a plastic bottle
4)  Offices can install filter based water machines rather than storing plastic water bottles.
5) Invest in a reusable water jug or water bottle to avoid use and throw plastic water bottles