Following a tweet from shanemo, I decided to check out fivesecondtest.com, and took the 5 second test.  I had no idea what it was prior to turning up, but within 10 seconds the minimalistic site had me sold.  From the site… The five second test is a simple usability test that...

Having problems sleeping?  Simply Noise is … simply that.  Focus on tasks, or in my case, simply fall asleep.  Try it out, I’m interested to see if anyone uses it in an office environment.