I mean, I understand that if a toy gets grubby or dusty or barfed on, then it needs to be washed. But I've run into mothers who go through every single toy on a regular basis and clean it, "just because." And they buy those toy sanitizing machines. What's up with that? I think they have the idea that germs pile up on toys, and need to be removed. Yes, but aren't the germs from YOUR kids, so clearly the kids have already been exposed, right? My whole house I'm sure is filled with microorganisms, but their OUR microorganisms, and we live in happy harmony with them without the aid of sanitizing machines.
I think it comes from the fact that daycares clean toys-- but daycares have lots and lots of kids from different households, all playing with the same toys. I don't feel the need to clean and sanitize them on a weekly basis, no sir. And clearly my kids have survived through early childhood without any awful diseases caught from unsanitized toys. So I guess we're doing okay.
One that really got me, though, was my kids' crib. There were these little places along the bottom of the rails, between the slats, that got horribly dirty. In the first year or so of DD1's life, I guess I was just too busy or oblivious to notice. (I am not the kind of person who notices dirt, anyway.) Then we went to move the crib out of our room, when DD was 15 months old, and I finally noticed how horrendously grubby it had gotten. I had wiped down the tops of the rails, often, but it never occurred to me to clean the BOTTOM of the crib.