First cut things that are harmful, and can be removed without ill effect: Like pennies.
The justification: http://www.youtube.com/watch?v=y5UT04p5f7U&feature=relmfu
Practical example: http://www.youtube.com/watch?v=nU4E6SSy5Yg&feature=relmfu
And more shoutingly : http://www.youtube.com/watch?v=77C47XYm_3c&feature=fvwrel