Cash registers have rung a bell on every sale since the late nineteenth century, a signal originally meant to alert owners that the drawer had opened. That ring evolved into the familiar cha-ching heard in shops, cartoons and adverts for decades. Online, creators shortened it into a standalone cue alongside a simple ding sound effect, using it for unboxings, side hustles and payday jokes. Its meaning needs no explanation across languages, which is why it remains a staple soundboard effect for money moments today.