I just knew it.
In the movie The Pistol: The Birth of a Legend a coach asks the young Pistol Pete how he knew his teammate was open without looking at him and Pistol says something like "I just knew it."
Instincts are enhanced by experience, moral living, and study. Instincts are vital to save money and avoid waste. Good instincts will warn us or endorse various actions enabling wise use of knowledge.
Idols: anything that pulls into a selfish consumption of time or money.
Spend money for things with inherent, long-lasting worth. It's easy to spend money on worthless idols--things that are vain and selfish.
(Photo courtesy David Castillo Dominici)