Photo credit: Bored Panda
For those who've never been to Japan, it's a wondrous place on the cutting edge of technology, but sometimes, you'll come across things that seem simple at first, but are actually quite clever to say the least, like this toilet tank sink. "This system costs less than conventional toilets and comes in eight- and-16-liter sizes and a rainbow of colors. Also available for bathrooms are artificial flushing-sound generations that people can use to cover up the sound of what they're doing without wasting water," according to a Korean newspaper. Continue reading for more. Click here for a few bonus images.