Heyy, I have a cheat to get the highest level in a job.
Basically you do the ctrl shifts and c so the grey box comes up.
Then you type (boolprop testingcheatsenabled true) then hit enter.
Then do ctrl shift and c again, and type in (move_objects on), hit enter.
Then when you morning paper arives.. Hold shift and click on the paper. Then it should say adultjobs, and you click a job of which you want your sim to have.
Then you say you want the job... Then you hold shift again and click on the paper.. And the option comes up saying (set job level to) and you click which ever. The higher the level it is, the more money you earn. Also on level ten, there is always a really nice carpool, such as limos and helicopters.
Its really cool
So have fun XX