Today is a very special day: My bro's 26th b-day! Happy birthday! :D And along the lines of college, I talk about math placement exams. STUDY for these. Pass out of your college algebra class, and save yourself some money and time!
The two links for the study guides are:
University of Houston: http://online.math.uh.edu/Math1330/index.html
University of California, Davis: http://www.math.ucdavis.edu/~marx/precalculus.html