There is hardly any strategy that can be applied to slots. Never believe if somebody says that he has an incredible winning strategy. The game is random and arbitrary. The machines have no memory, so there is no effective way of outsmarting them. But it is wise to play with useful tips, which can really help you. It doesn’t mean that you will win a lot of money, but you will not lose so much. Try to play slot machines that have the highest payout. Try to find something above 95%. Similar to other casino games, it is crucial to know the odds and probabilities of the machine you're playing. Before you start playing slots get acquainted with the payout schedule. Before playing decide how much you can spend this day. Stop playing when you reach this losing limit. When playing remember that you can win as well as lose. Try not to spend all of your time on a machine that isn't paying out. If the machine pays out good you’d better make higher bets. Make lower bets if you are slumping. Play the slot machines that your bankroll can afford. Play dollar machines if you don’t have much money. Before leaving the casino don’t forget to cash out the credits. Sounds obvious, but a lot of people forget! Always play what you know.

You must know exactly the game you are playing.
You should know exactly how many coins you are supposed to insert into a machine. Cash your credits and only the leave the machine.
Slots shouldn't be a stress for you, just enjoy. Use money management. Increase your bets when you are winning, and decrease your bets when you are losing.

Every casino game has its own rules, features and of course etiquette. Slots are not an exception here. Though slots are played by one person, still thinks which can and can’t be done during playing slots. First of all decide whether to deal or not to deal with this very slot machine. Imagine you leave the slot and go to the bar or to the restroom and you want to come back in a few minute and continue playing. How can you let other people know that the slot machine is in play? If you hang a coin cup over the handle of the slot machine it will mean that this slot is in play by you. Placing the coin cup on the seat has the same meaning. In casinos that use a cashless system, a personal item such as a jacket can be placed on the seat instead. In your turn you should respect other players and never sit to a slot that is in play. If you find a card left by the previous player the second etiquette rule has to be applied. It happens very often that a player leaves his card and walks away. If you face a situation like this you have to put the card on the top of the slot machine where it can be easily seen and found. Nowadays most casinos allow smoking while playing. Of course, others will hardly like it, so try to make as few inconveniences as possible. Tipping is another difficult issue for many slot players, and many people are unsure how much to tip the attendant that brings the winnings. In the case of a jackpot tip him with 0,5% of your jackpot.

Slot machines are honest because state gaming commissions make sure they are. But there are some manufactures that design the slots in such a way that they can deceive players.
When the first slots only appeared cheating was impossible because they worked mechanically, with independent wheels spinning and then stopping randomly. Modern slots are much different. These machines contain computer chips that are programmed to select numbers randomly. The selected number determines the symbol which then comes out. The computer code that generates the random numbers is responsible for whether the machine is “loose” or “tight,” so gaming inspectors look at the machine’s code to make sure that a slot machine doesn’t cheat. That is, inspectors make sure that the machine pays off at the legal rate or better.
It is next to impossible to say whether the chip is programmed not in a right way because the machine is not supposed to pay out with every spin. Before the machines are installed in casinos they are examined by inspectors. But you must understand that inspectors can’t examine every machine. They examine the brands. In the case of the approval of the brand the manufactures can produce the slot machines, even change them if it doesn’t go out legal bounds. Some dishonest manufactures use the right to produce machines, but use a different chip, which is programmed to pay less or not so often.
There is an example when there was inserted an illegal tip which doesn’t allow royal flushes. Or a chip that shows near misses of a jackpot. The player would never hit a jackpot but keep on playing maximum bets. If you think that you have come across such a machine you have a right to complain. In the case if the complaint the inspectors will visir the casino and check whether the machines have a legal chip. Manufacturers that cheat are fined or they can lose their license.

There is a man who managed to cheat slots.
It is not a secret that it is next to impossible to cheat a slot machine. But do you know that Tommy Glenn Carmichael managed to improve the payout of the machine to his benefit.
Carmichael, now 53, had a long history of inventing devices to cheat slot machines. He was caught with one, called a top-bottom joint, and sentenced to prison. After the release Tommy began to invent new kinds of devices for cheating slot machines. The principle of his next invention was following: he inserted a guitar wire in the slot machine and it made the coins release from the hopper.
Later, as slot machines became computer based, he had to invent a new tool. In some way he managed to fool the manufacture who showed him the inner construction of a slot machine. From that experience, he learned what he needed to know to beat it. His new inventions was a light want that blinded the sensor of the slot machine and as a result got winnings. He sold these wands and could earn up to ,000 a day. With all this money he bought expensive cars, houses and what not.
Eventually, all good things come to an end. Tommy was caught using his invention in one of the casinos. While charges from that incident were later dropped, he was caught under similar circumstances in Laughlin and later Atlantic City. By that time the police already have all necessary clues to prove that Tommy was guilty. He got three years’ probation and lost everything that he had bought before. He has been banned from entering any casino.