What would you do if you won a big lotto jackpot?

Don't know what my initial reaction would be. My luck I'd die of a heart attack. Anyways, first of all my family wouldn't have to worry about money anymore and neither would my fiance's. None of us would have to work (though I'd like to volunteer my time). I would set my mom up so good! She deserves so many good things and nothing would make me happier than to be able to help her out. Probably would plan a family vacation of a lifetime. Get out and enjoy this big 'ol world that we've seen so little of. I'd also like to bless others somehow, though I'm not sure how. I'm thinking of some kind of place for the homeless or battered women? Heck if I win enough maybe both!