Buy used textbooks. Many students buy textbooks from the university bookstore. These books are often expensive and it is rarely necessary to buy a new book. Check out online used book stores instead and purchase your books there.
Equip yourself to make your own food when your arrive on campus. Depending on your college and its location, eating out can be very expensive. Purchasing a coffee machine, dishes for cooking and other cooking utilities beforehand will make it easier for you to make your own food and beverages at school.
Look and apply for an on-campus job. Some on-campus job opportunities can be applied for before the school year begins, and the best jobs usually go quickly. Many schools have a devoted webpage for on-campus job recruitment--you can also contact school officials to see if any administrative positions are available.
Buy cheap software for your computer. Many students run up costs by purchasing expensive word processing and presentation software. Choose free open-source programs instead, such as Open Office Suite, which are nearly identical and will save you money.