Of all the products I've heard advertised, the Murphy's Oil Soap jingle does an especially strong job justifying its product's existence. "Now the dirt is finished, but the finish is fine" sums up the need for the oil soap--and locks itself into the mind along with a person's name, address, and date of birth. When an actress in a commercial broke into an operatic style during the verse, "You'll be using Murphy's all the time...," I didn't question it.
After all, what other oil soap elicits that reaction?
