What You Can Do is a New Zealand government website that has some useful suggestions for caring for the earth.
Guide to Going Green at Home is a USA website which explains there are many ways that being sustainable and saving money can go hand in hand.
This USA article on Food Sustainability explains about acting ethically and responsibly towards the environment and local communities in how we grow, transport and produce our food. It includes links to many other similar articles.
Act Now is a United Nations website that discusses the UN’s Sustainable Development goals and gives suggestions for actions that can be taken. They have an App for your smart device (AWorld) that can motivate and assist you to add actions to the 13million+ actions already registered.
Market Forces‘ website provides resources for identifying how some of your everyday financial decisions (what banks to use, what superannuation funds to use, what insurance companies to use) can be a powerful lever for promoting more sustainable businesses.