Dirt and a 13 month old

It doesn't seem to matter how often I wipe his hands and face. Nor does it matter if we aren't even in a dirty place. T will find the dirtiest thing around, put his hands in it, and likely try to eat it. I can't tell you how many times I've said "No baby, we don't eat rocks" today. He can be sitting completely still (a rare occurrence), and the dirt will leap onto him. Dirt hides in every little baby crevice, behind each ear, and under his fingernails. Dirt: thy home is baby.