The smell of English Leather cologne always makes me think of my Papa (he passed away when I was 7). That and the smell of a pipe. I can't stand cigarettes or cigars, but I love a pipe.
They always make me think of sitting on the back porch swing with him, sharing his chocolate milk (it came in glass bottles back then).
I don't have a single bad memory of my Papa, I was his "ladybug" - and he spoiled me rotten.