Like many of you, I don't think it's possible to cheat in a game where you can't win or loose.
I like to use the cheats sometimes. I use them to set up unplayed households, neighbours and future partners for my sims.
But the cheats I use in my played households should not be called cheats because you don't advance your sims by subtracting money with the money cheat, or by placing more objects with moveobjects if your sims still have to pay for them.
The only real cheat I use systematically is the one to ignore locked objects. I think all objects in the catalogue should be freely available. If my sims can afford them through honestly earned money, that is.