Happy Towel Day, Hoopy Froods!

Today is Towel Day, when we celebrate the life and work of author Douglas Adams. There are lots of ways to celebrate, but these are my favorites:
Play an Updated HHGTTG Text Adventure Online
Head on over to BBC Radio 4 to play a 30th anniversary edition of the Infocom game The Hitchhiker's Guide to the Galaxy. It's free, it's arguably better than the 20th anniversary edition, and it's brutal. From the How to Play page:
Note: The game will kill you frequently. If in doubt, before you make a move please save your game by typing "Save" then enter. You can then restore your game by typing "Restore" then enter. This should make it slightly less annoying getting killed as you can go back to where you were before it happened.
So go and play, if you dare!
Watch His Famous Lecture
Just days before his death, Adams delivered a fantastic lecture on Lemurs, Monkeys, Parrots, the Universe, and Everything. It is very much worth your time...but as always, you should have your towel handy.
You Tell Me!
How will you celebrate Towel Day? Perhaps by reading about The Time Douglas Adams Met Jim Henson?