I like the slightly stale smell of a large body of water. Sort of like the watery freshness plus all the seaweed flora, some dead some alive, combine into the smell of adventure.
Tobacco smoke, but only when it is someone else who's smoking.
Tea tree oil is just great.
Cigarettes on a cold night outside a music venue, coffee early in the morning, dog breath, fresh baked bread, Victoria's secret lovespell for high school nostalgia