1.   Choose a sofa that will do double duty as a guest bed.

2.   The sofa does double duty as a guest bed.

3.   As da Ponte scripts the sequence, no single Romeo could do double duty with both Juliets, but Ms. Sweete decrees otherwise.

4.   Bandleader Lysa Flores does double duty as a prominent cast member and designer of a head-turning Latino-rock musical score.

5.   Because you will be attending an opera that evening, you must wear something that will do double duty.

6.   Benrubi said the fact that both shows are on NBC makes it easier to get approval for double duty from network honchos.

7.   Bivens had double duty for Columbia, but not at his old tailback position.

8.   A fashionable tuxedo whose dinner jacket can do double duty on a festive but less-than-formal evening does have its merits.

9.   A simple on-screen switch chooses among English, Spanish or French, allowing the Zurk games to do double duty as reinforcements of language skills.

10.   A small switch on one side does double duty.