For the interior of the toilet, you’ll need a good brush. Scrub the interior, paying close attention to underneath the toilet’s rim. Flush, then apply a second spray of cleaner under the rim before ...

Tak-Sing Wong and his team of mechanical engineers at Penn State have created a new coating that makes toilet bowls so slippery, almost nothing sticks — including, and especially, human feces.

Holly's mum, Jo Wallace, said she was "baffled" by the toilet rules, adding teenagers were "expected to be very mature and make big life decisions" but also "not trusted" to use the toilets. "I ...