Shutterstock An Amazon Prime membership comes with free one-day delivery, access to nearly endless video and audio content, grocery discounts, and many more great perks. Roughly 59% of American households now use Amazon Prime, and the United States Post Office has reported a 54% increase in package deliveries in the past five years. Signing up for Amazon Prime is quick and easy, and it can cost as little as $6.49 a month ($59.99 annually) for students, and less than $12.99 a month ($119.99 annually) for everyone else. Here's how to sign up for an Amazon Prime Membership to unlock one-day delivery and other great perks. Amazon Prime, the fast and free shipping (and everything else) service launched by Amazon in early 2005, has changed the way Americans shop for just about everything.