I lucked out for once....
I've only ever brought a few stocks, Lucent lost 70% and a few others have become worthless, however during the dot com bust in 2001 I saw an opportunity when AAPL fell 90%. I picked up 50 shares at about $20 (They then continued to tank but finally the iPod kicked in).Then the stock split last March so I now have 100 shares at over $73 each! Of course I wish I had brought more at the time but at least it covered my losses in all my other disasters. I think the lesson learned is that stock picking is very hard, but can be very rewarding. Just remember to buy low - now is not the time to buy AAPL