Touristy guidelets about how to survive/enjoy/save your butt in Vegas are a dime a million, but over at HuffPo, there's an exceptional specimen in the genre. Your advisor says: Don't expect much, ask for more than you should expect and -- perhaps most importantly -- expect to lose at the tables -- but enjoy the ride.
My advice -- find a game and strategy that will help you make your gambling funds last as long as possible. You may or may not win any money, but you can learn to lose it at a much slower rate. Start with the basics. Understand that in most cases, putting money in a slot machine is akin to throwing it out of a window. Know when to hit or stay in blackjack. Learn how to play the pass line on a craps table (mathematically the best bet you can make in a casino). Ask a dealer for advice. Leave your ATM card in your room. Above all else, manage your own expectations.