Toiletry makers are linking with rental car companies and hotels to provide personal-care items that travelers might leave behind. Shipping companies are offering to deliver travelers' luggage or at least liquids such as perfume and liquor purchased in airport shops. And those who sell solid and powdered versions of personal care products such as toothpaste are advertising their products' new- found usefulness.

Among the first to offer products to travelers after the carry- on ban began were Crest, made by Procter & Gamble, and Avis Rent-A- Car System. They partnered to give away 25,000 bags of Crest Pro- Health products to car renters. Valued at $10 each, the bags included full-sized toothpaste, rinse and floss.

Photo(s); Crest and Avis gave away 25,000 bags of Crest products to car rental customers. The bags included toothpaste, rinse and floss.; Credit: DeVries Public Relations