A shopping list is a list of items needed to be purchased by a shopper. This can be done through purchases tracking per individual shopper. Myer places stores into one of four clusters, which reflects the store specific shopper demographics. Kantar Worldpanel runs continuous consumer panels and specializes in shopper behaviour. Each store has a similar layout, useful for both cost efficiency and shopper ease. She is an impulsive shopper who cannot go long without buying clothes. The concept behind each of the stores was to improve the experience of the shopper. Price is rarely negotiated between the shopper and shopkeeper. Tran began her career in the fashion industry as a personal shopper. A logo purse was a unifier, worn by celebrities, models, and the middle-class shopper. Usually they are tiered by target demographics based on the disposable income of the shopper. Pandora is a personal shopper for Selfridges. However, it is possible to identify a number of broad shopper profiles. Maureen is a personal shopper in Paris for Kyra, a demanding supermodel. Dave Shutton is a reporter for "The Springfield Shopper".