A method of generating custom reports based on point-of-sale data transferred between multiple remote computing devices and a central computing device includes generating point-of-sale data at multiple remote locations, transferring the point-of-sale data to a central computing device from multiple computing devices at the respective multiple remote locations, defining a custom report format, the custom report format specifying at least two of the multiple remote locations and specifying a date range, the date range and the at least two multiple remote locations being freely selectable by a user, generating a custom report using the custom report format, the custom report being based on point-of-sale data related to the specified remote locations and the specified date range, and communicating the custom report to a human being. A computer program embodied on a computer-readable medium for generating custom reports is also disclosed, as are subscription services, computer systems, graphical user interfaces and other features.