GET A FREE E-BOOK WITH PRIME: As of April 1, Amazon Prime members can snag a free e-book as part of the Amazon First Reads program. Not a Prime member? You can still grab First Reads e-books for just $1.99.

Prime membership basically pays for itself with all the free next-day shipping you receive on orders, so the extra benefits are truly just extra. For book loving members, the best monthly benefit is the Amazon's First Reads program. Like Book of the Month, there's a new selection of books hand-picked by Amazon's editors for members to grab at a discount. However, unlike Book of the Month, you can pick an e-book at no cost to you.