I registered to reply to this post. I am a short time lurker of this forum.
Before I say anything else, I am going to say that slots are bad for your bottom line. As a stat professor of mine said, "Play nickel slots, you will never see money disappear so quickly in your life." To a large extent I agree with this. If you are in a group, play Craps because it is a team game in disguise. If you are by yourself, play Blackjack or poker or whatever your game of choice is.
That being said, you can gain an advantage on certain slots and video poker machines. Specifically, these are the slots that have progressive jackpots. For any machine there is a point where the progressive jackpot value swings the expected value of the machine positive. Then you simply pump money into the machine until you win the progressive. The disadvantages however are a huge mitigating factor in this. First, as the progressive gets larger, more people want to play. This decreases the chance that you will win the jackpot. Second, it requires a large enough bankroll to essentially 'buy the jackpot.' Third, for slots (not video poker) calculating the expected value in your head isn't always easy, especially if the chance of winning a certain prize is not explicitly listed on the machine. (For video poker, you can know all the odds going in so you just have to do a bit of multiplication.)
So there you go, a "strategy" for slots during your breaks from Blackjack. :joker: