This holiday was started in honor of Douglas Adams, the late author of The Hitchhiker's Guide to the Galaxy series. The books stated that every hitchhiker should know where his towel was, and the towel became a symbol of the work. After Adams died in 2001, May 25 was declared Towel Day.
- May 25 (72 Discord): Towel Day (O). Are you one hoopy frood who really knows where your towel is? Well, you should be! Keep a towel with you all day today. People respect those who carry a towel. And if you meet someone who is too foolish to show you respect, use your towel to cover your eyes. They'll assume that if you can't see them, they can't see you, and they'll leave you alone. At least that's the theory. 
Crazy "notability" discussion http://en.wikipedia.org/wiki/Talk:Towel_Day ..it starts on en.wp too now :(