FEELING REFRESHED
Got a tired or cranky Sim? Why dont you just delete him-literally! Use the "move_objects on" cheat listed in the cheats section. Then save your game, go into Buy mode, click on the Sim who needs to be refreshed, and delete him! Don't worry, he disapear forever. Go back into Live mode, and you'll see a crosshair symbol over the Sim's icon. Just click on the icon, and the Sim will reappear with all his motives maxed out! MAKE SURE YOU SAVE before deleting the sim or you could lose skills from since you last saved!
THE MIRACLE
First, create a character with no personality points. Then buy the chemistry set. Have your Sim work on it until he produces a Yellow potion. Have them drink it, and all their personality traits will go to 10!
NOT THE CLOWN!!
The easiest way to keep the Tragic Clown away, is don't buy the Tragic Clown painting. If you buy the painting, and the average Mood score in your household drops too low, the clown will pay you a visit.
Think you're clever and will just trap the clown in a room with no doors? Forget it, he'll drop a portable hole on the ground, and reappear outside the trap. You also can't drown him in the pool; he'll swim around for a while, then reappear on dry land. The clown has no motives, so he won't tire, become hungry, or need to use the toilet.
There are two ways to get rid of the clown. One is to raise everyone's Mood score. Not an easy thing to do with the clown bothering them all the time (The "Instant Refreshment" trick above can do the trick, as can drinking blue potions). The alternative is to hang the Tragic Clown painting over a fireplace, and keep lighting a fire. Be sure to remove any smoke detectors from the room. Once the fireplace catches fire, the painting will burn, and with it, the clown. Once the clown is gone, call the Fire Department to extinguish the blaze.
DO NOT install the Clown Catcher add-on available on the Sims website, especially if you have the Sims Unleashed. It can cause the game to crash!