Segregate the rubbish for organic or non-organic, use lesser plastic bags, don't spit, don't let your pet dog excrete everywhere, safe the water, clean up the water waste to prevent condition for mosquito, use the rubbish bin with cover, always close the EXIT door, do not place unnecessary boxes or unused furniture in the back-stairs.....etc will help all of us to have better environment for living ! Bless you all !