where I use what I learned in those classes on a daily basis. Of the remaining engineering classes I took, the things I learned come in handy mainly by helping me know what people in other engineering disciplines are talking about.
Of all the other college classes I took, the things I learned in my freshman writing class, technical writing class, and statistics courses come in handy the most. The first two helped me become a much better writer (which so far has helped to set me apart in the engineering field), and the third basically made me a huge skeptic of most statistical data.