You could go into a professional qualification that doesn't require a degree (ACCA, ICAS etc), but you still won't be making as much money as a graduate will for doing the same job. You also won't have the same opportunities, in order to progress in professional fields, you usually need to have at least a 2:1 degree behind you.
You could, if you really wanted, go into an admin job in the oil industry. Oil companies are known for paying higher wages for standard jobs than any other industries, but I can't imagine those jobs will be very fulfilling for someone who has obviously wanted to go to university.