The methods of the invention provide a variety of processes that may be performed by a mobile retail system or a mobile robot system. In accordance with one process, the invention provides a method of facilitating a retail environment, comprising the steps of providing a mobile system for operation in the retail environment, the mobile system including a processor portion, a memory portion storing retail data relating to retail activity, the processor portion storing data in the memory portion and retrieving data from the memory portion, an interaction portion, and a transport portion. The method further includes traveling from at least a first location to a second location by the mobile system; monitoring the retail environment by the mobile system; and accepting input from a customer in the retail environment by the mobile system. Various other operations may be performed by the mobile system in accordance with the system and method of the invention.