As already mentioned and just to bring some facts in to this thread, nobody is saying the world will end tomorrow. The Rapture is believed by some to be the starting point of the end of the world which actually takes 7 years so it would still be some time away. What is believed will happen is all the Christians in the world will disapear at once and the rest of you are left to fend for yourself as the anti-Christ rises to power. He will be very charismatic and seen as being almost saint-like (think Tony Blair in 1997) and certainly no-one will guess who he is.
Cue loads of natural disasters, wars etc.
Then the battle to end all battles, but you can find out more about that yourself