I've been reading "Nancy Drew's Guide to Life." Much wisdom in it, apparently acquired in Iowa.
A few of samples:
A sincere and straightforward demeanor will get most anyone to open up and volunteer information. It doesn't hurt to be an attractive young woman, either. (From The Clue in the Old Album)
Humor the older generation and do a few activities once in awhile that they'll enjoy. (From The Clue of the Leaning Chimney)
I thought this one might be particularly helpful for White Wolf of Icicle Creek:
Snowmen on ski slopes make excellent hiding places. (From Mystery at the Ski Jump)