DS (4) has an amazing sense of smell, which he uses just the same as any of his other senses. He can smell a seat and say who has been sitting there. The other day, I was unpacking a bag of hand-me-downs from a friend and he said 'that dress smells of Lexi', (the girl who would have worn it, though he wouldn't have known). Anyone else come across this? I just find it fascinating...