Some passengers love to curl up in the car with a good book, and that no longer means filling the car with a small library. Today, e-readers like the Amazon Kindle or the Barnes & Noble Nook give readers access to hundreds of books with the push of a button. The e-paper screens on these readers are great for reading in cars because they reduce glare and eye strain.
E-readers are steadily improving. The Kindle DX boasts a nine-inch screen. Newer versions of the Nook offer color images -- ideal for kids' picture books.
Another great feature of e-readers is that when you finish your Janet Evanovich thriller, you can download her next book over a WiFi or 3G network. You can also keep up on your favorite magazines and newspapers so you stay in the know while you're on the road.