Cheat The Sims 3

Source :  http://vgstrategies.about.com/od/pccheatst/a/The-Sims-3-PC-Cheats-and-Codes.htm

Add Family Funds
Sims 3 Cheat code: familyfunds [Familyname] #
Note: The use of this code, with the family name as the modifyer and an amount as a variable, will add the given number of funds to the Sim family.
Example code entry: Press CTRL + SHIFT + C, then type familyfunds mysimsfamilyname 100000, and press Enter to activate the code. More info on this code on page 2.
Enable Testing Cheats
Sims 3 Cheat code: testingCheatsEnabled [true or false]
Note: When this code is set to true the game essentially goes into debug mode. When this cheat is active you can modify needs, lock needs, shift-click the mailbox to change careers and more.
Example code entry: Press CTRL + SHIFT + C, then type testingCheatsEnabled true, and press Enter to activate the code. More info on this code on page 2.
No Limitations on Moving Objects
Sims 3 Cheat code: moveObjects [on or off]
Note: This code allows you to move objects that are normally stationary.
Example code entry: Press CTRL + SHIFT + C, then type moveObjects on, and press Enter to activate the code.
View Career Outfits And Service Uniforms
Sims 3 Cheat code: unlockOutfits [on or off]
Note: This cheat code must be entered before you go into create a sim mode.
Example code entry: Press CTRL + SHIFT + C, then type unlockOutfits on, and press Enter to activate the code.
Display Cheats
Sims 3 Cheat code: help
Note: This code simply displays a list of cheat codes that can be used in the game.
Example code entry: Press CTRL + SHIFT + C, then type help, and press Enter to activate the code.
Return Sims To Safe And Nuetral State At Home
Sims 3 Cheat code: resetSim [first name] [last name]
Note: This code will return the Sim that you name within the code to a safe and nuetral state at home.
Example code entry: Press CTRL + SHIFT + C, then type resetSim Jane Doe, and press Enter to activate the code.
Allow Terrain Adjustments
Sims 3 Cheat code: constrainFloorElevation [true or false]
Note: The normal setting for this is true. If you enter this code with the false variable then you will be able to raise or lower the floor, even if there are walls, flooring, and other objects attached to it.
Example code entry: Press CTRL + SHIFT + C, then type contrainFloorElevation false, and press Enter to activate the code.
Objects Will Not Snap To Slots While Holding Alt
Sims 3 Cheat code: disableSnappingToSlotsOnAlt [on or off]
Note: When this code is set to on objects will not snap to slots while holding the Alt key.
Example code entry: Press CTRL + SHIFT + C, then type disableSnappingToSlotsOnAlt on, and press Enter to activate the code.
Objects Fade When Camera Gets Close To Them
Sims 3 Cheat code: fadeObjects [on or off]
Note: The use of this code, either on or off determines if objects will fade as the camera gets close to them. This does not affect Sims.
Example code entry: Press CTRL + SHIFT + C, then type fadeObjects on, and press Enter to activate the code.
Show or Hide Talk and Thought Balloons Above Sim's Head
Sims 3 Cheat code: hideHeadlineEffects [on or off]
Note: When set to off you will not see the talk or thought bubbles above Sim's heads.
Example code entry: Press CTRL + SHIFT + C, then type hideHeadlineEffects on, and press Enter to activate the code.
Print Random Joke To Console
Sims 3 Cheat code: jokePlease
Note: Typing in this code will simply display a random joke within the cheat console.
Example code entry: Press CTRL + SHIFT + C, then type jokePlease, and press Enter to activate the code.
Slow Motion Visuals
Sims 3 Cheat code: slowMotionViz [0-8] (0 is normal, 8 is slowest)
Note: Use of this code with a setting greater than zero will slow down the visuals within the game. This does not affect the in game time.
Example code entry: Press CTRL + SHIFT + C, then type slowMotionViz 6, and press Enter to activate the code.
Full Screen Mode
Sims 3 Cheat code: fullscreen [on or off]
Note: The use of this code simply determines if The Sims 3 should run in fullscreen mode or not.
Example code entry: Press CTRL + SHIFT + C, then type fullscreen on, and press Enter to activate the code.
Frames Per Second Display
Sims 3 Cheat code: fps
Note: The use of this code will display the framerate that the game is running in the top right of the screen.
Example code entry: Press CTRL + SHIFT + C, then type fps, and press Enter to activate the code.
Quit The Game
Sims 3 Cheat code: quit
Note: Use of this code will simply exit The Sims 3 video game.
Example code entry: Press CTRL + SHIFT + C, then type quit, and press Enter to activate the code.
Enable Llamas
Sims 3 Cheat code: enablellamas [on or off]
Note: Almost certain that this code does nothing to the game.
Example code entry: Press CTRL + SHIFT + C, then type enablellamas on, and press Enter to activate the code.

testingCheatEnabled true Cheat details

Using the 'testingCheatsEnabled true' cheat allows a ton of option to become available to you. Many of these options are available either by typing in additional codes after the code has been activated, or by Shift-clicking different items to see more options. Here is a brief run-down of what you can do with this cheat.
First, before doing anything else enable the testingCheatsEnabled code, you can do this in the following manner:
Open the console by pressing Control + Shift + C. You'll see a blue bar at the top of the game, this is the console. now, type in testingCheatsEnabled true and press Enter to activate the code.
Now lets take a look at some of the additional features this just opened up, beginning with the Shift-click cheats. (For the quickest way to add money in The Sims 3 scroll down the page to read about the Family Funds cheat.)

Shift-click at the Mailbox

Shift-clicking the mailbox will give you the following options.

Make All Happy
Force Visitor
Make Needs Static (or dynamic)
Make Friends For Me
Make Me Know Everyone
Set Career...
Force NPC...

Most of the options above should be pretty self-explanatory. I suggest toying around with these options for a little while to see what you can do.

Shift-click Your Workplace

Shift-clicking where you work will bring up a couple of options as well.

Force Opportunity
Force Event
Force All Events

These come in real handy when you're looking to get a raise, be promoted, or otherwise further your career. Force event simply forces an event to happen, like someone bringing donuts to the police station. Force opportunity is a bit more helpful, as it generally opens up things like staying late, working special assignments, etc. These will lead to quicker advancement.

Shift-clicking the Active Sim

Shift-clicking the active Sim simply allows you to modify the traits of that Sim through the 'Modify Traits for Active Sim' option.

Shift-clicking a Non-Household Sim

Shift-clicking a non-household Sim will provide you with the option to 'Add to Household.'

Shift-clicking Any Sim

Shift-clicking a Sim also gives you the option to 'Trigger Age Transition' or 'Modify Traits'.

Shift-clicking the Ground

Shift-clicking anywhere on the ground will bring up an option to 'Teleport' to that location, so you'll no longer need to wait for a Taxi, etc.

Family Funds Cheat

In addition, the familyfunds cheat becomes available once you've activated testingCheatsEnabled true. Here is how you add money to your family funds, this is a lot quicker than using the Kaching or Motherlode cheats.
The cheat format is really simple, here goes:

familyfunds (lastname) (amount)

My Sims' name is Jason R, so to make him have 500,000 I would type the following.

familyfunds R 500000