31.   Code-sharing agreements, which allow airlines to share codes on flight reservation systems, are the most frequently used alliance.

32.   Consider Morningstar, the Chicago financial publisher that provides the most widely used fund rating system.

33.   Dermatologists say the laser technology most commonly used in tattoo removal works best on black and blue but does not respond well to yellow, green and red.

34.   Drugstore representatives were recently quoted as saying that demand for Cipro, the most commonly used antibiotic to treat anthrax exposure, had been dropping for several weeks.

35.   E-mail is the most widely used Internet application, but its potential to provide your kids with rich learning experiences, information and fun is often overlooked.

36.   E-mail is the most frequently used on-line service, according to Gregory Wester, associate director at the Yankee Group, a market research firm in Boston.

37.   Estrogen replacement starting at menopause is the most widely used and best studied, but it is not suitable for every woman and cannot be taken by men.

38.   For the past eight years, black women have improved their scores more than any other group on the SAT, the most frequently used standardized college admission test.

39.   For the past eight years black women have improved their scores more than any other group on the SAT, the most frequently used standardized college admission test,

40.   Garson used the premise for this book in the same way most of us use money - as an excuse to do a lot of things.