If you want a break from your routine work (Writing code, testing etc) then like me you can also attend online courses form Stanford university. I am starting my AI, DB and MI class videos today.
If you have not signed up for the free classes from Stanford, I believe today (10th Oct 2011) is your last day.
All courses will have tests. I have just completed Unit-1 of AI course. You can also check the youtube channel.
Best of luck.
See u online.