Quite a few now I think about it...
Freshly cut grass
Fresh basil
Fresh Mint
Freshly baked bread
Freshly cooked bacon
Freshly burnt rubber
Freshly made cars
Freshly poured gasoline
Freshly produced exhaust fumes
I'm pretty sure I'm noticing a pattern here...
Also,
Fireworks
Bonfires
Coal Fires
Certain aftershaves and perfumes
Freshly washed girls hair
There's also one particular perfume my ex wore and I really really like it, probably because it reminds me of her. But when I smell it on random people and sisters, it can be akward...
Worst smell?
Dead crickets...
Yeah, actually the worst smell in the world... And I've smelt decomposing bodies...