NewsCostco to add membership card scanners to its warehouse entrancesCaroline Petrow-CohenAugust 8, 2024August 8, 2024 by Caroline Petrow-CohenAugust 8, 2024August 8, 202402 In an effort to crack down on shared memberships and prevent nonmembers from sneaking in, Costco is installing card scanners at the entrances of its...