Should I disinfect my baby's toys?

I usually only disinfect the toys that my kids are most likely to put in their mouths. I also disinfect toys if any of my kids have been real sick, I know it won't kill them all, but it's does helps spreading to the others. They do need to be exposed to some germs to build up immunity, but I don't think it needs to be on toys that go in their mouths. If you want to protect your baby from bad germs, just make sure you wash hers/his hands frequently as well as yours. They are bound to get germs other places I know, but hopefully that will help a little.