Today's observance is a world-wide occasion to remember Douglas Adams, author of the Hitch Hiker's Guide to the Galaxy , a book which Adams referred to as a "trilogy in five parts", a radio series, a television series, a video game, a movie - well you get the idea concerning it's popularity. The first Towel Day occured in 2001 days after Adams' death. Here's a brief excerpt from H2G2, the BBC television series, explaining the Pangalactic Gargle Blaster... And here's Douglas Adams in what is touted as his last interview. Hope you're wearing your towel today!