Sims (The) To open the cheat menu, press Ctrl+Shift+C at the same time.

100 Simoleans
Enter: Klapaucius
(Thanks to tpbdcox@bigpond.com)

1000 simoleans
Enter: Rosebud
(Thanks to tpbdcox@bigpond.com)

Allows you toMove Non-movable Objects
Enter: Move_objects on
(Thanks to tpbdcox@bigpond.com)

Choose the Size of your Lot
Enter: Lot Size (put chosen number here)
(Thanks to tpbdcox@bigpond.com)

Delete the Mailbox
Enter: No more bills
Put the Move Objects Cheat On and then go into Build Mode. Now delete the mailbox.
(Thanks to tpbdcox@bigpond.com)

Enables you to Control your Visitors
Enter: Visitor_Control
(Thanks to tpbdcox@bigpond.com)

Naked Sim
When your Sim is in the shower, bath tub, hot tub, etc., set the Move_objects on cheat to On, then click on the shower or wherever your Sim is. Move it somewhere else and your Sim will be naked.
(Thanks to pink_lover_babe@yahoo.com)

Promotion
Enter: Fast promotion
Enter the Move Objects Cheat, then send your Sim off to sleep. Then, when they are about to wake up, sell the bed. Time will still be set on ultra, so hit normal, then click on your Sim’s face in the gallery for an instant promotion (if the time is right).
(Thanks to tpbdcox@bigpond.com)

Repeats Last Code Entered
Enter: !
(Thanks to tpbdcox@bigpond.com)

Sets What Time you Wish to Get Up
Enter: Set hour
(Thanks to tpbdcox@bigpond.com)

Stop the Carpool
Enter: Never miss work
Put on the Move Objects Cheat and then place your garbage can in the middle of the road When the carpool arrives, the vehicle will stop moving and start honking.
(Thanks to tpbdcox@bigpond.com)

The Best House
Enter: Mansion
(Thanks to tpbdcox@bigpond.com)