It takes time to get materials here by interlibrary loan. Books are sent by U.S. mail and can take 3-7 days just for shipping. If you want to borrow a book from another library, you will NOT get it within 3 days. Typically, you can get a book in 1-2 weeks. If the book is available from another library in town, it might be quicker for you to go to that library yourself.
Books are almost always free.
There is a fee for getting articles, because you get to keep them. Don't waste your money on articles from other libraries when useful articles are already available right here on campus. Remember, borrowing is a privilege.