OK... had a google. We used the Shettles method.. and this O+12 method refutes the shettles method.

Must say there is a certain appeal to only DTD once LOL.. especially when there are 2 little children that wake up all the time! There are other ways to favour for a girl tho (by killing off boy sperm) which are also mentioned on the site I'm reading. I've heard of these before..

-The girl diet
-Supplements (calcium and magnesium, cranberry)
-Douching before intercourse with a lemon douche (mix the fresh-squeezed juice of 1/2 lemon with an equal part of water, and insert with the empty bottle from a regular store-bought douche).