Recently, I was at the well-known Dutch supermarket, Albert Heijn, using the self-scan kiosk to pay for my daily groceries. As I tapped my credit card against the terminal, no sound came from the device. Confused, I thought my payment hadn’t gone through, so I tried again. It suddenly dawned on me that the payment might now be deducted twice. Thankfully, this wasn’t the case. The next day, I made another grocery purchase, and this time, the terminal made a sound. I immediately realized how comforting that simple beep was—it reassured me that my payment had gone through. And I’m not alone in this experience. Research has shown that the beeping sounds from the cash register, signaling that the payment was received, significantly boost customer satisfaction (Reynolds‐McIlnay & Morrin, 2019).