A system includes N location indicators and a mobile scanning device. The N location indicators are configured to be arranged throughout a store that includes a plurality of stocked items for picking according to one or more electronic customer orders. Each of the N location indicators is configured to transmit a different location signal. The mobile scanning device includes a display. The mobile scanning device is configured to wirelessly receive an electronic customer order comprising a plurality of ordered items indicating which of the stocked items are to be picked, detect at least one of the N location signals, and arrange at least some of the plurality of ordered items on the display based on which of the at least one of the N location signals is detected.