Just spreading the word... I saw in a cool finds thread at GOS that Cyjon made a mod to stop sims from getting promotions. I know some bloggers like controlling how fast sims get promotions and it's kind of hard to keep them from advancing too fast when they have a lot of skill points and friends. Cyjon made an object that once placed in the sims' inventory, they will no longer get promotions. Check out the description. I haven't tried it yet but I'm definitely snagging it!
Job Stopinator @ Cyjon's Sims 2 Mods N Stuff