A huge way to cut costs while in college is to not get your books from the universities book store but from a website like http://www.cheapbooks.com/. If you are taking a class with a friend you can also share the book, both of these things calls for a bit more planning ahead but it will save you LOTS of money.
The best way to cut costs while in college is to control expenses. Try to cut all unnecessary purchases and expenses. Each penny you save is each one you earn ! You could do work on your own, to save money.
This will depend on the college student. If you live in the dorms, then the best deal will be to eat at the dorm cafeteria. But, if you don't, then you should abstain from eating out. Don't buy coffee or teas on campus. Bring snacks with you throughout the day. Utilize free services offered to you by the campus. This will help with entertainment costs (as many times free events happen at the school). If you can avoid owning a car, then you will save buckets of money on car payments, auto insurance, and gas. Just some tips. But, it's probably a good idea to make a budget for yourself to see where your money is already going. Then, determine where you are willing to make cuts.
If you are still in high school, try to get into Advanced Placement (AP) classes. You will get a year's credit for each course you pass if you pay for and pass the spring exam. You could save money while a college student by attending junior college to take courses required of freshmen. You will save money because your transfer credits should be accepted at larger 4-year institutions. Junior college is also a good place to try out a variety of courses before paying full price at the larger, more expensive schools. You will get to explore and build up breadth requirement coursework. Used textbooks are another place to save money; check craigslist, bulletin boards near campus, and students leaving that class on the last session (takes some planning). A difficult decision which will save lots of money is living at home, if your parents will have you, as you commute to school. This obviously will put a damper on your social life, but if your goal is truly to have a lower-cost college degree, then this choice will reduce your out-of-pocket expenses. You can catch up on your fun when you begin working fulltime.