The Kindle Paperwhite is a serious bookworm's best friend on vacation. With 4GB storage, it can hold thousands of books and is lighter than one paperback. Unlike most tablets, there's no screen glare, which is ideal for reading on the beach or by the pool. Amazon is also offering a deal on Kindle Unlimited, where you get three months for only $0.99. Basically the Netflix of books, you'll have access to more than one million books, plus select magazines and audio books through Audible.