I haven't been inside a casino is a bazillion years, and in fact haven't done it more than a dozen times in my lifetime. But I had a foolproof system for winning a few bucks. Blackjack tables only, and as a new player, let the dealer throw the first three or four hands to me. That's what they do, they give you a few hands maybe $50 or $100 worth to suck you in before they start taking you for all you've got. The minute the dealer takes the game back, call it quits. Go to the next casino, rinse and repeat.

I don't think I ever finished a night more than $200 or $300 ahead. But the keyword is "ahead" and when I did lose a hand or two, it was the house's money, not mine.