Have an Answer?
For starters, you may want to speak with your school about financial aid. Many schools offer tuition waivers or scholarships to deserving/needy students.
Some graduate programs receive funds or grants from the industry. As an example, a defense company called Lockheed Martin funded several graduate engineering programs in my school. Your school's financial aid office should be able to provide more insight on such opportunities.
You haven't specified the graduate discipline/line of study, so I am limited in the insight I can provide right now.