At this time of the year, when lying on the beach on vacation makes for lazy daydreams, it's not uncommon to consider the possibility of hitting it big in stocks.If you've been investing for a while, you realize this is not the same as trying to hit a lottery jackpot. The lottery is about luck. A big stock market win, instead, would combine a little study with foresight, courage and a dash of bravado. Sure, your $10,000 wager on a few low-priced names could blow up and leave you with nothing. But what if your idea actually worked out and you had an extra 10 grand in your brokerage account in 12 months? Normally it's my job to warn you away from reckless speculation. But just this once I'll be the enabler of your bad conscience. Let's throw caution to the wind and think about what kinds of stocks have the potential to go up 100%, 300% or even more over the next year.