I know quite a while back, I use to lose things when I changed active households, but for a long time now, when I change active households or move someone, I have not lost anything anymore. It use to be a big issue, but, I have not had that happen for quite some time. I still am nervous about moving or changing households, but everything seems to be in tact. It is not to say that it does not happen at all or won't happen, but, like pally said, try it and you could always go back to previous save. Thought I would throw my nickels worth in, lol.