Amazon Prime's free shipping perk will be restricted to household members only starting next month as the shopping juggernaut phases out the "Prime Invitee program." The program, which allowed Amazon Prime members to share their shipping benefits with people outside their household that didn't have a membership, will end on Oct. 1, according to the company's website. An Amazon spokesperson confirmed to FOX Business that it is ending the Invitee program, which launched in 2009, and focusing its advertising o ...