Today is 10/10/10 (as I'm sure has been crammed down your throat by media everywhere).
Two Years, two months, and two days from now, it will be 12/12/12, as I'm sure you can figure out (and yes, I KNOW that next year features 11/11/11, but that's not germane to the point I am making, so don't bother mentioning it). That will likely be the last time most of us will see that phenomenon. You'll need to wait until January 1st, 2101 to see it again. For perspective, any ten year olds reading this will be 101 when it happens.
Enjoy it while you can folks!