Exhibit A: a regular old trash can. But wait! There's something to this receptacle that makes it completely different. You see, if you toss some garbage into the air, the trash can will actually wheel around and position itself under the flying trash, ensuring that it will go in every time. You feel like a b-ball hero, and your bedroom stays cleaner for just a couple of minutes longer.
This is one of those things where the pieces of technology required to make this have been around for ages, but no-one's ever thought to put them together like this. Until now. Bluetooth, a positioning sensor, a motion tracker, and a couple of little wheels is all it took. That's the future for you: turning old ideas into incredible new products.