I added a bunch of sims to my household for an event. I was trying to split them back up, move everyone back where they belong and on the split households screen, it won't let me accept because no matter how I do it there's still more than 8 members in one household or another. I remembered you saying that you'd done this before for events, so I was wondering how you did it?
Most of the time I just save before adding all the sims in, and then just leave the game without saving to avoid the trouble.
But what you could do is go to random households around town and use the teleporter to bring some of your guests to those lots and add in until you get eight sims and move to another lot. After everyone’s split up enough, you can organize them back where they go. It’s a pain and takes a while, and I wish there was an option to move sims out of one household into multiple ones.