Bingo! More importantly, don’t bring MORE than that.
Yup. However, in addition to profiting, casinos also transfer a lot of money from one set of pockets into another. Your best bet at being the pocket that the money goes into is to avoid betting the same dollar more than once (so to speak).
That is, start with X (which would be more than a usual stake, unless you’re not going to be there long). Pile it on the left. Each time you play a game, move all proceeds (your bet plus any winnings) to the right. Continue this way until the pile on the left is empty, and then quit.
This avoids paying the “tax” more than once on the same dollar. The opposite strategy, which is guaranteed to lose you all your stake, is to keep playing until its gone. See the point? If the expectation is 95% (that is, with each dollar you bet, odds are you get 95 cents back), if you keep feeding those dollars back into the system, eventually that 5% “tax” will whittle you down to nothing.
Admittedly, this isn’t the most fun way to gamble, and if you’re sane, you go to Vegas for fun, not profit.
Be sure to study “perfect strategy” for whatever rules you’ll be playing. For me anyway, that makes it more fun, knowing what to do to get the best return. The expectation for perfect strategy is actually over 98% IIRC. Craps also has a high expectation, over 98% if you play “odds” bets, and it’s a lot easier to play craps with perfect strategy than blackjack. Still, I prefer blackjack; I like the pace and mood of the game, and the table interactions. I’m a serious expert, having gambled maybe a couple hundred bucks in my life! haha.
Perfect strategy is mostly the same regardless of the rules, but varies a lot at the marginal bets. You can always ask the dealer, and they’re usually correct.