It's time now for me to be sending in my undergraduate applications. I am still stuck on exactly what I want to list as my choice of major. I'm pretty sure that I want to do mechanical or aeronautical engineering, but not exactly sure. I am, however, certain on the fact that I want to be taking advanced physics and mathematics courses. Should I just go in as 'Undecided' and pick the classes I want to take with the help of my Student Advisor?