The Sims 3 Standard: Instant Skills and Fast Gain! by mxp

Positives: Gain your skills the old-fashioned way -- by cheating. You can choose between the "instant" mod, which gives you constant skill ups as long as you're doing a skill-related activity, and the "x2" mod, which gives you skill ups twice as fast as normal.

Negatives: Will definitely be replaced by the InSimenator.