Few things are grosser or more uncomfortable than sitting down on a public toilet and realizing the seat is still warm from the last, random pair of butt cheeks that were planted there. Oh my god, butts! So gross!

Luckily, there are inventions like this thermochromatic toilet seat out there that are designed to help warn you of potential gross warmness. It changes colors depending on how warm it is, so if there's a big, yellow, butt-shaped mark on it, you know what you're in for. As soon as this thing gets installed in some public restrooms, you'll be safe from that gross feeling forever. The future's so bright I've gotta wear shades.

Product Page, via Boing Boing