In a few years, Amazon may handle the entire delivery process for your impulse Prime purchases. The Wall Street Journal reports that Amazon is in the early stages of branching out its delivery operation into something that could eventually compete directly against UPS and FedEx — two companies that play a critical role in getting its packages to customers today. The online retailer is already testing such a service with trucks making last mile drop-offs in San Francisco, New York, and Los Angeles, according to the Journal. Aside from giving shoppers greater control over where and when they take a package, Amazons big plan wculd also eventually cut expenses and bring the company closer to offering same-day delivery in more cities. Amazon has already its own delivery network in the UK.