Throughout my life I have found that with women I am far more interested if she far into a group that I have not had sex with as of yet. In high school and later college I found myself making informal list of attributes which ranged from height or race to occupation or primary language ,and checking them off after knocking them off. This was all but forgotten until a recent business trip when I ran into a type I had not checked off and she led me to her hotel room later that evening. I was just wondering if I am the only one that does this?