I try not to think back on my first Sims 1 house. That sucker was ugly. I had no concept of architectural design back then, so it was little more than a box with doors. I eventually made it look pretty good after I found some seamless plate glass windows (if you put 2 of them next to each other, it looked like a single window) by turning it into a "glass house". :p I've tried several times to recreate it in Sims 3, but since I don't use custom content or mods anymore, it just doesn't look the same. But I still give it a go every now and again.
There are times where you just have to use moveObjects to do what you want to do when building a house, so I understand all too well what happens when you forget to turn it off. Windows hanging out in mid air, paintings and curtains in the middle of the room, geeze, you name it. But that's one of the least crazy of the building cheats. I've been messing around with "constrainFloorElevation" lately, and that one can wreak some havoc (can you say "10 foot high foundations?"). But at least you're one "undo" click away from eliminating any errors lol.