There are so many educational resources available for free online.
I love audiobooks! Many available are done with a full cast so each character gets a real voice- something although I love I am not super talented at recreating. I bought 3 Sansa Clips for about $30 each so my kids could listen to different stories at different times.
My library system has many audiobooks in its collection that are available for free download. They are only available for a limited amount of time just like checking out a book but I can put it on my mp3 player or ipod and we can listen to the books. I also love Story Nory for some classics like Rikki Tikki Tavi. Librivox also has many classic out of copyright audiobooks available.
When I drive 1000 miles with all 4 kids, I don't take a DVD player, I pack many hours of audiobooks both in CD format and on all the mp3 players and my ipod. Then, each child can listen to stories they are interested in or I can pipe them through the whole car for the whole family.
Some of the books we have listened to on Audio have included The Lion, The Witch and The Wardrobe; Johnny Tremain; Peter Pan; Charlotte's Web; Ginger Pye; Paddington; Just So Stories; and The Secret Garden.
Audiobooks aren't just for long trips though. When I have to run errands, the kids and I will often listen to an audiobook rather than the radio. They love stories and I am happy filling their minds with quality sound.
Tiger likes to borrow audiobooks and read the book while it is being played, especially if the book is a little more challenging. Doing this, he read Redwall, several of the Little Britches series, and a few others.
What audiobooks do you like to listen to?