When You Have No Pen or Paper...

What can you do when you have no pen or paper handy and you need to write something down? If you have your cell phone handy, one idea is to call yourself, and leave a voice message which you can receive later. You can take this a step further and sign up for a voice mail telephone number using a service like K7 - this service will forward your telephone message to your email inbox which you can read later.