Today, clients of online stores have known that a part of the money they spent on the purchase can be returned if they use cashback services. Online stores pay their partners (cashback services) a commission from your purchases, which cashback services then share with you. This is a mutually beneficial trading scheme, “everybody wins” - sellers attract loyal customers, cashback sites get a commission for mediation and service, and buyers save the family budget. My idea is using the same business model in everyday life. All you need is downloading a special mobile application and tie it with your credit card. Scan the QR code in your favorite place (café, bars, restaurants and etc), pay via application and get up to 20% cashback.