Do you use everything you learned in highschool?

There are a few things that I learned in math class in high school that I actually still use but for the most part I don't really use that much. My math teacher in my junior year even told me once that unless I was planning on being a math teacher I would never again use what she was teaching me so it ended up being a really fun class to attend. She made us do the work but she taught it in a really fun way. I actually remember more of what she taught me than any other math teacher but it was mostly stuff that I have never needed.

my algebra teacher always told me that the subject has practical uses but until now, i wouldn't know any of those practical uses even if my life depended on them. i did come across some internet algorithms in the course of my online work and they looked suspiciously like algebraic equations. i took one look at them and nearly fainted :) my teacher must have been telling the truth