Computing systems and methods for facilitating consumer transactions in retail and other establishments include communication interfaces adapted to couple a computing system to a plurality of third party mobile electronic devices, storage components adapted to store user information, participating merchant information, or any combination thereof, and processors in communication with the communication interfaces and storage components. The processors are adapted to facilitate automatic wireless transactions between third party users of the third party mobile electronic devices and the participating merchants when the third party devices are present at the participating merchants without any affirmative activity by the third party users.