Press COMMAND+SHIFT+C on Mac to bring up the cheats console. From there, you can enter the commands below to activate the corresponding effects.

Code	Effect
Death.toggle	Disables Death
FreeRealEstate [on/off]	When entered at neighborhood/world level, makes all homes free
Help	Lists available console cheats
aspirations.complete_current_milestone	Completes current aspiration milestone
careers.demote[name of career]	Earn a demotion in chosen career
careers.promote[name of career]	Earn a promotion in chosen career
careers.remove_career[name of career]	Abandon career
crafting.shorten_phases	Faster crafting
fullscreen	Toggles full screen on/off
headlineeffects[on/off]	Hides all headline effects (plumbobs, thought balloons, etc.)
households.autopay_bills	Pays bills automatically
kaching	1000 Simoleons
motherlode	50,000 Simoleons
resetSim [FirstName] [LastName]	Resets the specified Sim
rosebud	1000 Simoleons
sims.fill_all_commodities	Fill commodities for one Sim
sims.modify_funds [amount]	Add specified amount of funds
sims.remove_all_buffs	Moodlets are removed
sims.spawnsimple[number of Sims desired]	Spawn specified number of Sims (keep the number low to avoid crashes)
stats.fill_commodities_household	Fill commodities for all Sims in household
testingcheats [true/false]	Enables additional cheats
ui.dialog.auto_respond	Backs out of dialog or makes a choice automatically