Starting Oct. 1, Amazon will change its program that allows Prime members to share free shipping benefits with people outside their household.

Are you one of those people who meticulously watches your Amazon Prime orders, following them every step of the way from initial order all the way to the beloved out-for-delivery stage in your email?

Amazon is rolling out same-day delivery of fresh food to more than 1,000 cities, a sign that it’s finally finding success with its grocery business after years of shifting strategies. In a move that ...