Professional degrees, engineering degrees and science degrees are particularly useful. Arts (Music, Art History, Theater, Art, etc.), liberal arts (English, Poli Sci, History, Writing, etc.), and even business degrees can be pretty useless without a professional degree or grad degree to back them up.
My wife and brother each has a music education degree ... which are surprisingly lucrative.
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Funny that you mention music education, because my "day" job now is teaching music at a private studio. Again, no formal education on my part.