Very simple - start with 0.5 BTC bet with 49.95% chance of win, double bet untill you win, and then withdraw. Very easy and fun. 
Man this is horrible strategy unless your bankroll is over 100 btc . I will never suggest anyone to try this unless he/she has a huge bankroll. And even if you have such high bankroll you should try with much smaller bets. I think though yes dice is best way to make money in gambling.