Ultimately, this unlocked the idea for Listerine Breath Strips: portable breath fresheners in a candy format.

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What we call "air fresheners" may freshen the smell, but they just mask the pollution--and may even act as irritants themselves.

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Although further research is needed, we do already know that air fresheners and bleach trigger symptoms in people who already have asthma.

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While the air fresheners posed no immediate risk to consumers, persistently high exposure levels can have long-term health risks, according to the NRDC.

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Yet Cintas' top-line growth is now being driven by ancillary products, such as fire extinguishers, air fresheners, bandages, cough drops and lip balm, and services like document-shredding and restroom-cleaning.

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Every delivery was accompanied by new, full sets of disposal bags, deodorants, air fresheners and wet wipes - which he has now amassed into a collection in a drawer.

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But does that also apply to air fresheners?

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We've got more shopping malls than churches, we spend more time staring at Internet coupon sites than reading Shakespeare, we stomp on each other at 5 A.M. on Christmas Eve to snag that discounted laptop at Wal-Mart, a store that now sells buckets of popcorn, suggesting that shopping for Glade plug-in air fresheners is the entertainment equivalent of going to the movies.

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We've got more shopping malls than churches, we spend more time staring at Internet coupon sites than reading Shakespeare, we stomp on each other at 5 A.M. on Christmas Eve to snag that discounted laptop at Wal-Mart (nyse: WMT - news - people ), a store that now sells buckets of popcorn, suggesting that shopping for Glade plug-in air fresheners is the entertainment equivalent of going to the movies.

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