Never understood the freshly mown grass thing, to me it signals a sneezing hell on earth!
The smell of garlic when in the vicinity of any pizzeria is wonderful Why does it smell so disgusting on breath?
Real leather shoes.
Petrol.
A woman's neck (with the right perfume of course!)
The smell of fresh chips just after the vinegar has been added.
ChillDoubt, Freshly mown grass for me because it reminds me of camping holidays I had as a child. Luckily I don't suffer from hayfever, I would probably think differently if I did. :)