Review on Cup and Can Carrier - Perfect for Gift-giving by Danny Rogers

I drive on the door panel and my car already has 2 cup holders. I always use all orders with 3 or more drinks on my coasters. But it doesn't work well with only 1 or 2 cups as it falls off just as easily as if there were no cup holder. Maybe if there was something that could block the base or something that could be attached to a seat belt and make the base more stable? I've used this about a dozen times out of 200 shipments and it comes in handy when needed!