What are some quick (legal) ways to make money?

How would you go on to make RM300 within a week?.

All these promoter jobs are so mafan. Work one day for RM100 and payment term is 45 days?? Somemore it's always the Chinese girls they're looming for.

The work has to be legal but ethical is not compulsory. Moral values does not matter as long as its legal.