Hey there Corporate Hackers,
Just a quick note to encourage you to fully take advantage of your weekend. Turn your Blackberry, Outlook or Mail.app off -- those emails can wait until Monday morning. If you've already made that a precedent, you could go so far as to set an out-of-office advising your return on Monday morning.
It's drastically important to disconnect and step away from your job -- on the weekend, you're not being paid to address those emails! You have to take time to stop and recharge your batteries and live your life, and stopping conversation with friends or driving off the road is not worth reading another "FYI" email.