Press [Ctrl] + [Shift] + C to display the console window. Enter one of the following case-insensitive codes to activate the corresponding cheat function. Note: On Vista you may need to press [Ctrl] + [Windows] + [Shift] + C to display the console window. The codes for the original The Sims 3 can now be enabled.

Effect	Code
Selected NPC has life end	ageupNPC
Toggle buying and building mode under all circumstances (for example, if there is a fire)	AlwaysAllowBuildBuy [on or off]
Toggle flashing plot symbols in neighborhood view	Disco tags [on or off]