Hi,
My sister adopts the 'pinch of dirt' philosophy with her 12mth DD. For example, I have often seen bits of banana falling on the floor (where 2 dogs live) and a quick rinse under the tap and given back to DD or letting her play in dirty areas.
My sis believes it will mean she won't develop allergies.
I don't really know where i stand on the issue, so was curious what other MN's thought.