Passbook is a new feature announced for Apple's iOS 6 that will be able to store all of your digital tickets, boarding passes, store cards and coupons in one easy-to-access app.
The best way to think of it is like a Newsstand - which keeps all of your magazine subscriptions together on an iPad - for tickets and passes.
At the keynote address at Apple's tech fest WWDC 2012 this week, Passbook was shown accessing a whole host of apps.
How complete it will be when iOS 6 is finally launched in a few months' time will depend on whether or not developers adopt it for their apps.
Take the Starbucks app, for instance.
It currently has a dedicated section within it for your card, which you can use to pay for drinks and check your balance. If this, along with all of your other store cards, were kept in one easy-to-access app on your home screen, it would save you a lot of time swiping between screens and tapping on folders.