If you’ve ever tried to install a rooftop or rear-end bike rack on your car, then you’ll know what a hassle it can be. You have to put the thing together, carefully line everything up, run the hooks ...

Let me just add a quick note about suction cups (in real life). How do they work? Well, they don't suck - that's for sure. When you press a rubber suction cup against a smooth surface, air is forced ...