I heard about Dolly Parton's Imagination Library a couple of months ago, checked it out and signed my kids up right away. I love feeding my kids love of books and having books sent straight to my house for free is the best thing since sliced bread.
Today, my 4 year old received his second book, Take Care, Good Knight.
If you are not familiar with Dolly Parton's Imagination Library you can check it out here http://www.imaginationlibrary.com/. It's easy to sign up and doesn't cost a thing. It is only for children from birth through 4 years of age. So if you have children in that age range why not encourage their love of books by having them delivered straight to your door?