Best known for free two-day shipping on an unlimited number of orders, Amazon Prime has steadily added perks since its introduction — including access to its enormous, ad-free music catalog. But like seemingly everything else, Prime has gotten more expensive

Amazon shoppers who want to snag same-day groceries, electronics and other items in a single order will now have the chance, thanks to the company's recently launched grocery delivery program. The company launched the program in at least 1,000 cities and ...