I'm sure everyone knows the cheats for sims 2, but I figure I'll add them anyways, (: 

motherlode - 50,000 simoleons
plumbbobtoggle off - hides the plumbob until you switch lots, or turn it back on.
showheadlines off - hides thought bubbles and relationship options.
boolprop snapobjectstogrid false - allows you to move things off grid.
moveobjects on - all things are moveable.
boolprop testingcheatsenabled true - very helpful, but why not just get simblender or insim?
boolprop allow45degreeangleofrotation true - allows all rotations (but use > & < to move)
StretchSkeleton 1-9 - makes sims taller or shorter
Aging off
familyfunds (family LN) $$$ - for example, if I wanted 9,999,999 for my Romani family, I would type: famiyfunds Romani 9999999
unlockcareerrewards - all unlocked
aspirationpoints 200000 - replace the #'s with how much you want, but don't go too high or you won't be able to use this cheat again for the selected sim.