Free time? Super easy exp
Just after tapping on an adult sim have you adult sim kick the trash can over a few hundre times and you'll be flying through the ranks the only down side to this is your sim will stink after a few kicks but you are still earning really kick exp. Another way is to create a patch of six gardens and have your sims garden carrots you will be earning about 140 simuolons per five mins if you have a dog or cat or both in the same area then you will earn most likely at least 200-300 per five mins.
Added by: Guest Oct 8th 2012, ID#1420