Amazon is making it easier for customers to pay with cash for their online purchases. The retailer today announced the U.S. arrival of Amazon PayCode, a new checkout option that will allow online shoppers to pay for Amazon.com purchases at one of 15,000 Western Union locations. Separately from this, Amazon said that its Amazon Cash service, which lets you load cash into an Amazon account, is now offered at more than 100,000 cash-loading locations across the U.S.