If you are like me, you like to save money by using the loyalty cards at various stores! But I do not like to carry around a huge ring of them or dozens of cards in my wallet! So for the last several years, I have been using an app called KeyRing. When you create an account, it will save all your cards so that if you get a new phone, you only need to download the app and log in!
Also you and your spouse can log in with the same user name and password so that you only need one set of reward cards!