Nostalgic Smells...
The smell of McDonalds in a car.
shareEucalyptus in the rain
shareMy wife's perfumes that she would wear in the early years of our marriage. It was almost like a "cherry/strawberry-like smell." Very intoxicating!
Also, cigarette smell on a golf course. Quite a few of the people I used to play golf with (including my younger brother) were cigarette smokers. I've never smoked, but there's a strange appeal to me whenever I smell cigarette smoke. It reminds me of playing golf back in the 90s and early 2000s... there's something oddly nostalgic about it for me.
Freshly mowed grass
The smell of it always takes me back to primary school days.
Back in grade school they used to use mimeograph machines to make copies of tests and handouts before they were replaced by photocopiers. The mimeographs had purple ink that smelled after freshly printed.
https://www.youtube.com/watch?v=Uu3iCvAQCHg