As one of the prepaid cards which can be used not only in entity store, such as supermarket, jewelry store, salon, flower store, toy store, book shop, you can see lots of these stores have some gift and reward cards that have some money in it, which can be rewards for clients, members and also can be a wonderful gift for relatives, and you can realize that is also a wonderful advertisement for promotion.
And also you can notice that nowadays we not only have the entity store gift cards, but also the online store gift card like amazon gift card, iTunes gift cards. You can purchase some products from online shop. Sometimes when you receive the package, you can find out that there are gift cards sent by shop owners that you can use them as cash next time.