I think the Home Improvement smell is lumber.
I never really thought of it as an Aspie trait but there are a few smells I'm just obsessed with.
Lilac
Eucalyptus
Dog paws (that mix of grass and dirt I think)
Winter air
Pine
Irish Spring soap
Home improvement stores (Lowe's, TSC, Ace, etc) I don't know what it is but I love being in there.