Walmart will start to deliver prescriptions to customers' doorsteps. Customers can also get additional items dropped off along with medications, such as groceries.As CVS and Walgreens shutter hundreds of stores nationwide to shore up profits and investor sentiment, Walmart said Tuesday that it is offering a new option for customers: Delivering prescriptions to their doorsteps.The nation's largest retailer said deliveries are now available in six states: Arkansas, Missouri, New York, Nevada, South Carolina a ...