Study Hacks is a website devoted to "decoding patterns of success." Study Hacks' basic philosophy is that you don't have to sleep 3-4 hours per night, take 17 hours of classes, double major/double minor, and be the president of 5,000 thousand clubs on campus in order to succeed in college. Seriously, you don't have to. However, there are certain things successful people do in order to be succeed in college that isn't about being book smart and always saying no to having fun. Check out this short post on "The Straight A-Method" for some tips on how to do that:
Knowing what is expected of you as a student is key, which is where a planner or some sort of system that involves knowing upcoming important dates comes in. The UNT Bookstore has some good planners, but rather than spend money I recommend finding a planner template online. Check out this link for free planner templates that you can print off from a computer (use one on campus so you don't waste your own printer ink and paper): http://office.microsoft.com/en-us/templates/CT010142351.aspx
And your first most important key to success in any college class READ YOUR SYLLABUS! Those aren't just for covering teacher's asses and reminding students that they shouldn't be on Facebook while in class. They are for you the student!