If I had the power, I'd simply end government-backed student loans.
Simple as that.
In fact, I'd go further:
I'd ban private loans to students (to pay for tuition and expenses) as well.
Either pay "up front" -- or don't go.
Of course, not very many prospective students would be able to do that.
So... what would the response of the schools be when few students can pay their outrageous tuitions...?