I often use the stake doubling technique to several games. I normally do this with dice games and if it played correctly its profitable. What you have to do is simply start with a small stake and every time you lose you double your steak until you win. Once you win, you will recover all the amount you lost. This works if you have enough money to keep doubling your bet, so you should do your math and check with how much you should start. It is not infallible but it works.
I was waiting for the but as it was looking too unreal as you could run out of money. This strategy only favor the wealthy gamblers as they can never run out of money but for someone like me that use very low capital to bet, I could lose it all with just the first doubling. The technique I used or I'll say my beliefs is leaving a slots game after losing three times straight.
Some individuals keep playing but I don't I moved on to the next slot games then double the amount I used for the previous slot games. Example if I was using $5 for the previous game then the new game I'll increase my value to $10 and also try my luck three times maximum as well.
There's a lot of different strategy but the common one is the martingale some might see it working but most of the time gambler find this kind of strategy is the worse one to use, it always defend from how you see the strategy, if it's useful to you then you can go and execute it, keep doubling your fund till you win, allocated capital and numbers of losing streak always varies with martingale, if you are lucky and you know when to stop while you still in the winning favor then it will allow you to withdraw money with decent earnings.
on the side-note, if you are unlucky and you have an aggressive type of gambling mentality, be aware that martingale may suck all your bankroll with huge numbers of losing streak.