Wait until a field number is rolled. Then bet 3 units on the field. If it loses, wait for another field number to roll, and repeat with 3 units. If it wins, bet 5 units on the field, one time ONLY! Then, wait for a non-field number that is followed by a field number, and bet 3 units after that.... and so forth..... For those who are mathematically inclined, I do understand that this is using "The Gambler's Fallacy" and that the dice do not know what came out before. Even so, you might want to try it out just for fun. I have used this 3-5 strategy on other games and it appears to be effective more often than you would expect. You may even wish to try it on blackjack combined with BJ Basic Strategy.