Why not send an email that's programmed to arrive far in the future? A technology/art project in France allows you to send emails set to arrive up to fifty years hence. I like the idea of emailing myself in a year to see how I'm doing. Or you can send yourself an email to remind yourself to do some task far down the road.
Odd and wonderful stuff. Read about it in the New York Times here; and find the project itself at http://2067.hypermoi.net/.