For those of you who don't play blackjack often and who've never seen the buddy flick Swingers, wherein this gambling maneuver is much discussed, doubling down is essentially doubling your bet in mid-play because the odds are in your favor. And what's the best time and place to double down in Casino Phoenix? Tuesdays and Thursdays at any of the Valley's six Castle Megastores, where the management runs a rent-two-DVDs-for-the-price-of-one special, allowing you twice the XXX viewing pleasure with twice the adult film stars at the beck and call of your remote control. This is an important offer for pornophiles because the majority of adult films are not quite as, er, stimulating as you'd like 'em to be, if you catch our drift. But by doubling your "bet," and taking home, say, Italian stallion Rocco Siffredi's latest release along with a compilation of steamy seductress Tera Patrick's best work, you're more likely to precipitate a jackpot worthy of your wager. Plus, let's face it, what we're alluding to is a hell of a lot more fun than gambling, right?