Towel Day Post author:HFM Post published:May 24, 2006 Post category:Odd Holidays In honor of Douglas Adams — carry a towel all day long on May 25th. You Might Also Like We’re Hiding in the House With the Lights Off October 31, 2006 No Pants Day April 30, 2004 Happy Leap Day 2008 February 29, 2008