Over time, copper oxidizes to a blue-green color, not dissimilar to the shade ... which makes your toilet bowl the perfect breeding ground. To treat them, you can use several cleaning staples ...

An curved arrow pointing right. The IllumiBowl Toilet Night-Light is a color-changing night-light for your toilet bowl. This means no more getting blinded by bathroom lights, bumping into things ...

Cleaning the toilet isn’t particularly fun to begin with (although it’s not nearly as bad as unclogging a clogged toilet!), but scrubbing the “porcelain throne” can feel even more arduous ...