i have this habit, a little thing i do, whenever i've visited a city. i buy a map of the place. once i've been there, i have to have a map of it for my "records". i don't ever buy a map of a city until i've been there. with one exception.
earlier this year, i was actually planning to go to new orleans for a vacation, so i broke with my established tradition and bought a map of new orleans in anticipation of going there. after all, i figured even if i didn't end up going in the spring, as planned (which i didn't), i would certainly go there in the near future.
coincidences make me paranoid, even when they shouldn't.