login to your Dropbox account and participate in the Dropquest:
https://www.dropbox.com/dropquest2011
If you don't like puzzles, here's a walkthrough (warning: 30 steps):
http://www.forumvancouver.com/threads/dropbox-dropquest-answer-key.707/
Took me 21 mins at 1am this morning and I guess there is a contest to see who can do it the fastest.
Enjoy