Do you ever wonder if it's warm or cold in whatever room you're in? No? Yeah, me either. The whole being able to register how I am feeling thing makes it pretty much a no-brainer. But hey, if you were somehow sadly born without the ability to distinguish whether you feel hot or cold, the Grobag Egg might just be for you.
The Grobag Egg is a thermometer that uses LEDs to glow blue, yellow, orange, or red depending on the temperature. If it's too chilly, it'll glow blue and you should go put a sweater on. If it's red, take that sweater off, idiot! It's hot in here! Now you'll never have the embarrassment of wearing a sweater in the middle of summer again, as the egg will always be there to tell you just how warm or cold it really is. Technology sure can be a lifesaver.