The Powerball lottery jackpot was an estimated $200 million with a cash option of $89.5 million for Saturday night's drawing, according to the Powerball website. The jackpot was last won on Dec. 7 when a New York lottery player won a $256 million Powerball jackpot.

Could today be your lucky day when you become the next Powerball millionaire? The Powerball jackpot is an estimated $200 million with a cash option of $89.5 million for Saturday night's drawing, according to the Powerball website.

Just won millions in the lottery? Congratulations! Here's what to do — and more importantly, not to do — to avoid making some very big mistakes.