Holy moly. Probably put a lot of that away into a savings account, buy a pretty nice house, fix up my car, pay off uni and buy my friends and family something nice. Probably send my mum to Wimbledon, actually.
Basic, but... clothes. A lot of new clothes and shoes. I wear basically the same things over again, it's so sad. Then put the rest towards camera equipment/stuff for wedding photography again because DAMMIT I NEED IT.