Here are a list of the known cheats for The Sims 3.
If you have anymore to add please PM me and I will update the list

first press Ctrl+Shift+C to open console
help - display most cheats
kaching - 1,000 simoleons
motherlode - 50,000 simoleons
unlockOutfits [on/off] - view career outfits and service uniforms (enter before entering CAS)
moveObjects [on/off] - no limitations for placing/moving objects
resetSim [first name] [last name] - return sim to safe and neutral state at home
constrainFloorElevation [true/false] - allows terrain adjustments
desableSnappingToSlotsOnAlt [on/off] - objects will not snap to slots while holding Alt
fadeObjects [on/off] - objects fade when camera gets close to them
hideHeadlineEffects [on/off] - show talk/thought balloons above Sim's head
jokePlease - print random joke to console
slowMotionViz [0-8] - slow motion visuals; 0 is normal, 8 is slowest
testingCheatsEnabled [true/false] - test cheats*
fullscreen [on/off] - full screen
quit - quit the game
enablellamas [on/off] - no effect
shift+click on the ground - teleports your sim
testingCheatsEnabled true
The above allows you to:
1. Drag the sliders for their needs.
2. Drag the sliders for their relationships.
3. Shift-click the mailbox for more cheats.
4. Shift-click their sim for more cheats.*After using the testingCheatsenabled True command, you can then use FamilyFunds /family/ #
to get money.