'Dopamine websites' offer shopping thrill without the bill — here's how they work

You know that rush from scrolling, filling up a cart and tracking a package — but it can get expensive fast. A new trend out of South Korea is giving shoppers that same buzz without the bill. They're called "dopamine websites," and they let users scroll, pick items, read reviews and even "place an order" — except nothing actually arrives. Here's how the trend is catching on.