Your photos will be backed up through the Amazon Photos app, which you can access from both your computer and mobile device. Prime members can also print their photos on Shutterfly for a 45% discount. Prime members in the U.S can save 10 cents per gallon of gas at more than 7,500 participating stations (or 25 cents per gallon on Fridays, now through Dec. 26). To get the cents off, you have to register for the free earnify gas app and link it to your Prime account. Then use the earnify app or the payment method linked to the app to get the discount.