Actually, it began a while ago but I've been too busy to post. If I manage to get to bed within an hour of posting this (before 2 AM); that'll be the earliest I've gone to bed in the past three nights.
The homework at Caltech is challenging (go figure). The problem sets take anywhere from four to eight hours each, and we generally have five in a week. In addition, there are some take-home quizzes each week. The work is interesting though and I know I'm learning a lot; so in some sense I enjoy the effort required of me. Currently I am taking calculus, physics, chemistry, applied physics lab, American history, and ultimate frisbee. This schedule is typical of all freshman at Caltech; the only variances lie in a different humanities or physical education course.
For hobbies, I am playing in the concert band on my alto saxophone, going out for the ultimate frisbee team, and being involved in the Caltech Christian Fellowship here. Right at the beginning of the year I had to make sure that I didn't sign up for too many things, because there are so many things to do at Caltech that overcommitment is a distinct possibility. I just hope that I can continue doing the things I've committed to throughout the year. Also, as a hobby and means of transportation I took up longboarding and bought my own board this week. I have a lot of fun cruising around campus and I have started to feel like I belong here.