The Sims: Double Deluxe Tips

Easy Stats And Happiness
Save your game first unless you want to lose the stats that you have just increase.

1. Press Ctrl+Alt+C
2. Now type in "move_objects on" in the green box.(no quotations)
3. Go to buy mode and click on you sim and delete him.
4. Now when you return click on your sims face in the bottom bar. He will return with full bars.

Now you can study for a handfull of hours and then save otherwise you will lose your stats. Then just do it again. This makes gaining stats way easier.