One only needs two tools in life: WD-40 to make things go, and duct tape to make them stop.

This quip distills a pragmatic, improvisational philosophy of everyday problem-solving into a memorable pair of household “miracle” products. WD-40 stands for lubrication, loosening, and restoring motion—getting stuck mechanisms to work again—while duct tape symbolizes restraint, patching, and temporary fixes that hold things in place. The humor comes from reducing the complexity of life to two opposing actions: make it move or make it stop. As a piece of folk wisdom, it also nods to a DIY ethos: competence is less about specialized equipment than about resourcefulness, confidence, and the willingness to jury-rig solutions.