I have a l o n g memory- I was born in 1935. Practically the only thing that hasn't changed is drugstores. They smell just as they did when I was a kid.

Then some time back I inadvertently bought Pepsodent tooth paste. Taste memory rushed in- it's the brand we used when I was little, although we used tooth powder, as opposed to paste. I don't know if they even make tooth powder any more.