It was also fun finding an envelope containing some banking information from when I lived in Amsterdam. It listed my address in Amsterdam and, by happy coincidence, Google Maps appears to have updated their Amsterdam maps (they were previously rather fuzzy). This has let me get a good aerial view of the apartment I had there. It's the third up from the intersection and looks like a dark square -- I tried to center it in the map.
One thing I found fascinating about that apartment is that it was built before the United States even existed.