From my “Murphy’s Law” desk calendar archives thanks to Aunt Evelyn, Uncle Pipey, and cousin Nancy:

Golub’s Second Law of Computerdom: A carelessly planned project takes three times long to complete than expected; a carefully planned project takes only twice as long.

 Goofy guy’s source documentation of Golub’s Second Law of Computerdom: The computer geeks stole this law from the bible for home repair business.