Here are some cheats for the game. I have double deluxe and my friend has deluxe so these cheats work for all the expansion packs.
Note: there is more cheats, but i only listed the ones that are useful.
Press CTRL + SHIFT + C to access the cheat window, then enter the following:
Cheat Effect

exit	closes cheat window
expand	expands or contracts cheat window
help -all	list cheats
moveobjects (on/off)	moves objects and deletes what you couldn't before(sooo much fun!)
StretchSkeleton	makes your sims larger or smaller
aging off	turn off aging
aging on	turn on aging
boolProp snapObjectsToGrid true/false	You can place objects outside the grid.
intProp maxNumOfVisitingSims 8	You can invite more people to your parties.
clear	Clears all cheat codes on the screen, but codes are still in effect.
slowmotion	Puts the game in slow motion. Enter any number that 0 through 8 (0=fastest and 8=slowest)
boolprop lotWater (True/False)	Set to false to remove removes water (ponds) from lots
boolprop lotInfoAdvancedMode (True/False)	Set to true to show lot information
boolProp displayPaths (True/False)	Set to true to see the path where the selected Sim walks to
boolProp testingcheatsenabled true/false	if set to true ALL other cheats work.
familyfunds (Family's last name) 1000000	Alots any amount of money you desire to any sim family (remove parenthesis in the family's last name and fill it in with name of your sim family)
unlockcareerrewards	unlocks career rewards.
help [cheat command]	Displays information about indicated cheat.
twinzr2cute forcetwins	Have twins when baby is born(make sure the sim is pregnant!) Have twins when baby is born(make sure the sim is pregnant!)