Charity begins at home but it is not the only thing that must begin from home. Let us begin our concern for environment from home!!! The use of plastics can't be stopped completely until it has been replaced by an affordable commodity but it can be avoided to some extent.
Observe the need of plastics in your home and figure out wherever it can be avoided. Talk with your acquaintances(everyone who will listen you) and make them follow simple rules. For example, ask them to carry an eco-friendly cloth bag whenever they step out to buy something.