What is the origin of the idiom "no muss, no fuss" and when to use it?

The idiom "no muss, no fuss" originated in colloquial American English in the early 20th century. While the precise historical origin is not definitively documented, it is a phrase that has evolved naturally in language to describe straightforward and uncomplicated situations or processes. The use of "muss" and "fuss" in this idiom emphasizes the idea that a task or situation is free from mess or trouble.