It is surprisingly helpful sometimes.
See this web site for
details about Oblique Strategies. I collected all strategies I could find
there, whether I liked them or not. See also
the wikipedia article.
The original oblique strategies were a deck of cards created by Brian Eno and Peter Schmidt.
(c) Eno/Schmidt 1975
Here is also the source code. The zip file contains an Eclipse project to be used with the EclipseME plugin and Sun's Wireless Toolikt (WTK).