1.   All my specialist knowledge, all that accumulated wisdom of the ages, would surely come in useful to some one.

2.   And a big stick comes in useful too.

3.   I suppose you thought I might come in useful as a translator.

4.   The extra income would come in useful.

5.   The Rolls was to come in useful when Gabrielle had an idea to get them both working.

6.   I mean, it could come in useful.

7.   He is a capable finisher and his experience of the big occasion will come in useful in a Maghery side gunning for their first title.

8.   She is also a singer and musician, and her talent as a pianist has often come in useful to teachers with specialist classes.

9.   But that came in useful.

10.   Suppose a notebook might come in useful to jot anything down or whatever.