There's no single sure fire way to bed a woman. If there were, what fun would it be in trying? Each woman is different, each woman wants something different, each woman wants to be approached different, etc ...
Yes, some methods work more efficiently than others. That's how things go in life. Hell, even sometimes the same method that didn't work on the woman the first time, will work if you try again.
It's really not rocket science at all. Talk to a woman, before yourself, even if you're goofy, nerdy, geeky, whatever. Majority of women that I've encountered would rather a geek act like a geek than a geek try acting like something he's not. Be you and chances are, she'll dig that.
Something often lost in the efforts of getting with a woman is ... really ... it is very easy. The problem comes with guys trying to hard or talking about their ex's or being douche bags. The simple fact you approach a woman, gives you a helluva lot more than you realize. Our problem as men, is we tend to screw things up by being douchebags.