To enter cheats in The Sims 2, first open the command console by simultaneously pressing ctrl-shift-c.
Note that cheats are case-sensitive. Some of the cheats that can be used here are as follows:

Kaching – Adds §1.000,- to household funds
Motherlode – Adds §50.000,- to household funds
Moveobjects on/off – Move unmovable objects
Aging -on/-off – Sims won’t age
Autopatch on/off – Toggles notification of available game patches

StretchSkeleton (number) – Make you sim smaller or higher.
2.0 double size, 0.5 half size, etc.

Vsync on/off – Turning off increases game performance but with some graphical errors as the price

Help – Lists some, but not all cheats
Exit – Closes cheat window
Expand – Expands or contracts the cheat window
faceBlendLimits -on/off – When making a child in CAS, this cheat can turn off facial bounding limitations

Neighbourhood cheats
deleteAllCharacters -Removes every sim from the neighbourhood
TerrainType desert/temperate – Toggles between two terrain types

Filmmaking cheats

Slowmotion 0-8 – 0 is normal speed and 8 is slower

boolProp enablePostProcessing true/false – Must be true for all filmic cheats to function

Bloom (r g b x) – Creates a filmic look in which everything’s so bright it blurs together “r”, “g,” and “b” are color values (0-255) and “x” is the amount of blooming from 0 to 255

vignette (centerx centery X) – Creates a filmic look in which a focal point is clear but everything around it is blurry

filmgrain (0-1) – Creates a film graininess

letterbox (0.0-0.4) – Creates a letterbox view of size specified