I've still got my bunker from Y2K. Did that thing ever come in handy. My computer, bank cards, those computer things that help my car run, all of that shit got saved. Was going to sell the bunker till I heard about 2012. I put in for vacation that week so I'll still get paid for when the world ends then too.
Here's a heads up, bring Hostess Twinkies. The company just filed for bankruptcy and that stuff has a shelf life way past the polarity shift date.
I have to admit I did purchase extra water and canned foods for Y2K. I didn't tell anyone, just stocked the pantry closet very well.