If you insist on not spending the grant for your own needs, why not give it to one who receives no grant? Say what you want about parents' income, but I guarantee you they will need it far more.
Middle-classes suffer terribly under the maintenance grant system; they receive nothing (or very little) and so live in genuine fear of running out of money as their parents can't afford to help out, whereas people from poorer backgrounds spend the money irrationally on clothes or other non-essential purchases which, to me, rather slaps the face of those who get nothing, budget well, and yet still are left in the red.