If you could invent a gadget what would it be?

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Like I said technology is creeping up on us. Soon will be living in the moon. In a few decades, give or take, car's will be flying. But let's take it easy and enjoy this topic shall we people. Technology knows no boundaries. New ideas are always welcome. So I want to ask you guys, if you could invent a gadget/gizmo what would it be? What would you call you're creation and what can it do. share you're ideas. IF you can't invent is then with all the gadget's now which gadget would you wan't to upgrade and why?