If you can't tell that you're getting sunburned by the pinkness of your skin or the soft scent of burning flesh wafting through the air, you might just be an idiot. And if you're an idiot, there's all sorts of products to back up your lack of acumen and allow you to continue to function as a normal member of society.

Take this Minox Suntimer, for instance. It wraps around your arm while you're out soaking up the rays, giving you a sweet armband tanline. While it's blocking the sun from hitting a strip of your skin, it also tells you just how much sun you've been getting and when to get out of the sun and into the shade. It factors in skin type and what kind of sunscreen you have on to predict the exact moment you'll go from healthy, tanned sunbather to cancer-stricken leather catcher's mitt. No word on price or availability, but luckily for you it's December so you've got some time before sunbathing season comes back. — Adam Frucci

Minox Suntimer, via Oh Gizmo!