WD-40® was invented in 1953 as a “rust prevention solvent and degreaser,” initially for the aerospace industry. By the 1970s, it became a household must-have for mechanical jobs of any kind. My dad loved working with his hands. He tinkered with our cars, either going at it with the hood up or by crawling underneath. Space was made for his work bench and tool box in the garage to meet the demands of auto and household repair. He gave attention to detail. When WD-40® became available for home use, dad had the little blue and yellow can with a thin red tube (for tricky-to-reach places), on a shelf in the…