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Could there be a day when people sue over tobacco residue left behind in a building's walls or carpet? HowStuffWorks investigates.

What makes cats hunt a laser pointer? Learn more about cats and laser pointers in this HowStuffWorks Now article.

'A Christmas Story' is the anti-Hallmark Card film about the holidays. Take this HowStuffWorks quiz to find out more about this classic movie.

Coral grows faster when it's cut or broken and scientists are taking advantage of that to replenish depleted reefs.

Algae represents big money to some investors and could provide protein to help solve the problem of world hunger.

Did you just receive a call and let it go to voicemail? Learn why it is or isn't rude to screen calls at HowStuffWorks.

Have you ever wondered why people knock on wood for luck? Like many superstitions, the answer goes back as far as pagan rituals.

Research has proven lullabies can lower stress levels in babies. Learn why lullabies work at HowStuffWorks.

Do you wonder what to do after you've been robbed? Check out this article learn what to do after you've been robbed.

Is expired sunscreen OK to use or should you get a new bottle? Find out and learn more about expired sunscreen at HowStuffWorks.

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