Tomorrow is Towel Day (Wikipedia article), a celebration of the life and humor of the esteemed Douglas Adams. For those who don’t know, Douglas Adams was the writer of the Hitchhiker’s Guide to the Galaxy radio show (which eventually got turned into a book, which was turned into a movie that wasn’t quite as clever) and was a frequent contributor to the BBC show Doctor Who. He passed away on 2001-05-11. Tomorrow is the tenth celebration of Towel Day, a tradition which started two weeks after his death.

So bring a towel, the most useful thing in the universe, with you tomorrow, and celebrate a great man. And DON’T PANIC.