Amazon is eliminating a program that allows Prime subscription members to share free shipping benefits with people outside their household. Amazon has previously let Prime members share free, two-day shipping with one other adult in their household, even if they use a different address. However, the company began notifying users in recent days that it plans to end the Prime Invitee Program on October 1st in favor of Amazon Family. The Amazon Family program offers member benefits to one other adult, four children and up to four teens who must share the same primary residential address.