In a world where most basic things have already been invented and the technological progress is so advanced that even if you’re as smart as Einstein you might feel useless, well, inventing useful stuff is not that easy. But stuff that is only slightly useful and only to people who are ready to throw away their money for something they will use for five minutes, hey, there’s plenty of stuff. Except for the DJ Cat Scratch. That one’s really cool and you know you need it. Get it now!