I'm constantly amazed at the clever ideas that pop up on the internet. A couple of recent ones I've discovered are both based on the concept of anonymity. A few months ago I first heard about mailinator.com. The concept is simple; when you sign up for something where you think you may get spam, but they force you to use a valid e-mail address, give them a mailinator address. Anyone can check any address they want. You check your madeup address, get your activation code or confirmation number or whatever, and never have to see the spam you inevitably accumulate. I love it.