Yes, Mamas, it's Friday the 13th. This is actually the only one of all 2008. I've never been plagued with much fear of this date, beyond the anxiety the films provoked at slumber parties. There is actually quite a bit of history of superstitious belief surrounding Fridays and the number 13, but dread of Friday the 13th in particular seems to be a 20th Century phenomenon.
So, unless you're paraskavedekatriaphobic, I say get out there and play the lottery today. Like they say, you never know.