The Sims 2: Holiday Edition Cheat Codes & Walkthroughs for PC 

Cheat codes, console commands, secrets:
Press [Ctrl] + [Shift] + [C] during game play to display the console window.
Enter one of the following codes to activate the corresponding cheat function.
Note: Some codes may be case-sensitive:

kaching - 1,000 Simoleons
motherlode - 50,000 Simoleons
IntProp maxNumbOfVistingSims 8 - Can invite more Sims to parties.
clear - Clear console window
expand - Expand or contract console window
help -all - List all console codes
moveobjects_ on - Move Sims and objects
intprop censorgridsize 0 - Remove censors
Cheat codes, console commands, secrets and system requirements for The Sims 2: Holiday Edition free online.