It's the little things in life – like bringing a reusable shopping bag to the supermarket – that make a difference. Luckily, pint-sized shoppers get a kick from such cheap thrills.

Save the planet, one bag at a time. "My Bag and Me," a new children's board book, shows kids how easy it is to go green through the story of a boy grocery shopping with his mom. The book comes with a cute reusable (and recyclable) Tyrex bag for Earth-conscious kids to take along on their next trip to Target.

Getting the baby to stop gnawing on the shopping cart is another story.

Available online at amazon.com.