I started collecting US stamps in Elementary school, gave it up for about a decade, then... started up again when I worked at a downtown Mail Center. (HA!)
As for joining Einstein@home, I heard about BOINC in the newspaper when SETI@home started, but since I didn't have a laptop at the time, I forgot about it. But once I did (and did a Google Search for "screen saver(s)")...
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