A really common thing I see on forums and on seddit are guys who decide what their target will or will not do. This is extremely counterproductive not to mention arrogant. Yes, arrogant. Here is what I'm talking about:

"I didn't ask her back to my place because she is not that kind of girl"

and similar things like: "I didn't go for the kiss because she is really conservative."

If you are guilty of this and want to greatly improve your chances with women, STOP DOING IT.

Don't make decisions for her that hurt your chances of closing! Don't decide she isn't ready to sleep with you or what not. Give her the option, and let her decide. Don't be so arrogant as to decide for her! Also, don't be afraid of rejection or failure (the real reason most men come up with these excuses to not go for it), just ask, and see how many girls you end up closing that "aren't that type of girl."