As part of my research I went into places where money was used every day e.g. shops, casino to observe how people handle money and how they use it in different scenarios. The casino was interesting from a spending perspective because no actual notes or coins were used, but chips and cards instead. The way that the pack of cards fanned out to show all the cards at once made me think about the ways in which we display our credit/ debit cards.
Below: Shows a clip on the corner of the cards which securely hold them in place and allow you to fan them out to see which card you want.