Once upon a time one skilled roulette player told me about his strategy. You may be know it, my be not, but its very good as i think. You play for minimal bets and wait for sequences. Sequence mean that color red or black repeats many times. When you see 5 colors in one row you place your bet to other color. Teoretically, if one color repeats many time, % that other color will appear next is high, so you can earn in short time period 200-500% from your deposit. But dont be scrooge – when you earn money, momentally make cashout and go to other casino. This way can bring not big, but real money for you.