I was just reading this old New York Times [1] article where Gizmodo [2]'s Brian Lam says that his dream gadget would be a shower karaoke machine. Genius! Two years later, it still doesn't exist, but it got me thinking about how I would answer that question about beauty. Makeup that goes strong for eight hours, then evaporates? A Magic Eraser for acne scars? Endless possibilities... what's yours?

Source [3]