We have all battled soap scum, the stubborn, cloudy film that clings to shower doors and tile. Although many cleansers keep it at bay, it is helpful to know why it forms in the first place. The ...

If you have glass shower doors, you know that soap scum can be a huge eyesore. That filmy white layer that builds up on doors, tiles, and faucets can make your shower look unhygienic—but it's more ...