If you find a “bleach” stain on your underwear, you need to know what it means.

There are countless reasons why the Internet, with its wealth of available knowledge, is a very useful tool.

While the benefits it offers us on a daily basis seem endless, its ability to be an inexhaustible source of shared knowledge is perhaps what makes it the greatest invention of the last few centuries.

If you know where to look, you can find information on any topic and you can always get the solution you are looking for. With a few clicks of a mouse and a tap of a computer keyboard, mysteries that would have remained unanswered for decades can suddenly be solved.

In the same way that useful tips and tricks have become common knowledge over time after being the domain of the elite, many old myths have been debunked online.

For example, have you ever wondered why your underwear sometimes seems to have bleach stains? If so, it seems you’re not alone, as women looking for solutions have asked the same question online.

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