@igazor Their motives also get reset to whatever the game considers correct for the time of day, which never matches the schedule I have them trained to. Then they get hungry and sleepy too early. I don't like that, and I don't like their wishes changing either. But it worked fine to move them to their other house when none of them were doing anything important, then move them back once their lot was reset. Their dryer, which was in the middle of a cycle when I reset the house, got stuck on the cycle and had to be replaced. But that might have been because I moved them, rather than because of the reset, and it's no big deal. It isn't the first time I've had to replace it - more like the third time. I'm still playing, so I don't know whether it will affect loading time yet. When I finish the current sim day, I'll save and close the game.
@ScottDemon I'll ask my son about that. He's the one who built and maintains my computer for me. But I have to stick with what I have for now anyway, as I don't have the money for new hardware. By the time I do, maybe SSD's will be more affordable than they are now.