8 of 10

Toss that flea collar

Baths are a great way to de-flea your pet sans chemicals. Wash your animal friend’s bedding in hot water once a week, too.

Why it’s good for the Earth: Pesticides used in flea collars may contain toxic chemicals, including possible carcinogens, that can contaminate water.

Why it’s good for you: Many pesticides are designed to obstruct the nervous systems of bugs. But they can also interfere with human hormones over time, says Sarah Janssen, MD, NRDC environmental-health expert.

Next: Nix the screen saver