I got really good grades in high school, so I went to the school that gave me a massive scholarship. Then I dropped out, took classes in Argentina, re-enrolled, and transferred my credits back to the US school. That saved me tons of money, and I graduated in three years. I also worked all the way through school.
For graduate school, I got a degree in France, where education is nearly free.
Then I taught my way through my almost-finished PhD in the US.
All of this took a ton of craftiness. But yep, I am also debt free.