Lot of people ask about doubling their money in a flash....why they are not thinking of putting hard work You must have shorted Bear Stearns stock
Try spreading out your investment say 100 dollars here 100 dollars there. Than whatever way you find most enjoyable/profitable stick with that and invest more in it.
LOL. I doubled my money playing blackjack last night at the casino. I only put down $200 on the table though. Walked away with $450. So I made $250 in one hour. Not too bad, but there is no guarantee of doing that everyday, that why it's called gambling.