Abstract: A holder accessory for a handlebar of a shopping cart is provided that includes a platform and two securing members that are attachable around and aligned with a horizontal cart push bar portion and a cart transverse portion of the shopping cart handlebar. The transverse securing member provides cantilevered support for the platform, while the push bar securing member is angularly offset from and generally oriented perpendicularly from the push bar securing member to provide support against lateral forces. A stem extends from the underside of the platform to the transverse securing member to hold the platform at a suitable angle for use. Optionally, but preferably, the platform includes a lower ledge upon which a mobile phone, paper, or pen may be rested and an upper retention member to temporarily hold or fasten paper to the platform.