I have heard in the name of Rabbi Chaim Vital that one's olam haba depends largely on how he treated his wife. anyone know the source (if any) of this statement and what is the logic behind it.
A previous question discusses whether men should avoid showering after using the Mikveh. I have heard specifically that the Ari Z"l frowned upon this. Can anyone please quote the source, if one does ...
I have heard before that a segulah for having a boy is to have relations with one's wife twice in one night. I remember hearing this in the name of Chazal. Does anyone know the makor for it?