This mug belongs to such things as … oh. man, why haven’t I devised it earlier? The idea is too simple to be true. Here it comes – a cute mug with a temperature sensor for $28 from Art Lebedev.

The mug itself looks rather poor but it is packed with a highly useful feature. You will find the silhouette of a battery symbol on the outside, and you’ll be able to know the right temperature of your drink.
However, the temperature strip become visible only when the mercury rises to 36 degrees Celcius, so your drink should be really hot.
A magic cup!
P.S. BTW, most products by Lebedev are that simple and useful, love most of them. The only one minus – prices are not cheap at all.
