Hugh Downs' Four Rules for Investigating the Universe: Rule 1 - When confronted with an apparent infinite or infinitely repeating pattern, expect some variant that keeps it from being infinite. Rule 2 - When all investigation supports Rule 1, look for a situation which violates it. Rule 3 - Be prepared for an infinite oscillation between Rules 1 and 2. Rule 4 - Apply Rule 1.
Drew's Law of Highway Biology: The first bug to hit a clean windshield lands directly in front of your eyes.
Ducharme's Axiom: If you view your problem closely enough you will recognize yourself as part of the problem.
Ducharme's Precept: Opportunity always knocks at the least opportune moment.
Emersons' Law of Contrariness: Our chief want in life is somebody who shall make us do what we can. Having found them, we shall then hate them for it.
Estridge's Law: No matter how large and standardized the marketplace is, IBM can redefine it.
Fett's Law: Never replicate a successful experiment.