World's Most Important Travel Innovations

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Revolutionary ideas that have changed the face of travel forever.

Green Housekeeping

15 of 40

Striking a blow against global warming in 1993, Patricia Griffin, president and founder of the “Green” Hotels Association, introduced cards that asked guests to consider using their linens or towels more than once. The first property to order the cards was a Best Western in Houston; now it’s rare not to find this gentle request wherever you stay. —Aimee Lee Ball

World's Most Important Travel Innovations

Green Housekeeping

Striking a blow against global warming in 1993, Patricia Griffin, president and founder of the “Green” Hotels Association, introduced cards that asked guests to consider using their linens or towels more than once. The first property to order the cards was a Best Western in Houston; now it’s rare not to find this gentle request wherever you stay. —Aimee Lee Ball

PicturesByrob / Alamy
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