IT'S THE END OF THE WORLD AS WE KNOW IT...!
Have you been to Confession lately, all you Catholics? According to a prophecy of St. Malachy around 1139, there would be only 112 more popes after that time. Pope Benedict XVI is number 111. That means that judgment day is nigh.
Right now, I'm just adding that to the already scary understanding the Mayans had that the world will end on December 21, 2012.
But there are many more possibilities out there. If you want to check up on them, I'd recommend a visit to armageddononline.org, where they seem to have everything nicely organized. So, whether you're worried about the asteroid that will just miss Earth in 2029 (or so the authorities claim), or the nut with the nukes in North Korea, you can spend a few minutes staring at the end of it all and contemplating whether you really think cheating on your taxes or your spouse is a good thing or a bad thing.