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Getting a job (either with a law firm, or outside of the legal field) is probably the best way to get additional funds without incurring increasing amounts of debt.
There are a few scholarships out there - if the student is willing to spend the time searching for them, but the amounts are generally low, but charitable groups such as service clubs will often have these available.
If the student is very good in school, the school itself may have scholarships available. (Sometimes transferring from one school to another (generally done between the 1L and 2L years) is a way to find a better financial aid package with more scholarships. However, these scholarships will not increase the overall financial aid package - they will only tilt the loan to scholarship ratio, which of course is very important as it lowers the after-graduation debt.