A return coupon holder is described for holding a return coupon issued in a store in conjunction with a customer’s merchandise return transaction. The drive wheels are adapted to allow the vehicle to spin in place about a vertical axis which intersects the horizontal axis midway between the drive wheels and which is generally centered in the circular frame. The application program execution means executes an application program read out from the program memory means. Furthermore, the polarized beam splitter surface transmits an S-polarized light and a P-polarized light in the blue wavelength band, and also transmits the S-polarized light and P-polarized light in the red wavelength band. In one embodiment, the system includes: a camera, associated with the mobile telephone, that records an image of coded data associated with the article and a database, remote from the mobile telephone, that supplies information about the article to the mobile telephone based on a received, decoded form of the coded data derived from the image.