If you're going to wager a bet on a set of coin tosses (or at least over who drives to get the Chinese takeout) you can stack the odds in your favour with some mathematical magic.
At the analytical search engine Wolfram Alpha they've turned their attention to the serious business of coin toss games. They analysed the outcomes of Penney's Game—a coin toss game where players pick a pattern of outcomes as the winning sequence—like heads-tails-heads. By studying the mathematics and probability charts behind the game you can pick a sequence that outranks your opponent, practically guaranteeing you consistent wins.
Check out the full article at the link below for probability charts and a fascinating look into the mathematics of solving coin toss probability problems.
How to Win at Coin Flipping [Wolfram Alpha]