Should I try again to distribute leaflets about the punishment for abandoning prayer, the bliss of the grave, and its torment? Is there any mistake in giving a copy to a neighbor who is forty years old, or is it preferable to limit it to women only?

Do not despair of people responding to good, for the methods of da'wah are many, such as leaflets, booklets, tapes, and direct da'wah. There is no harm in distributing leaflets to men and women, but it is better that you do not directly hand them to men; rather, let it be through their mahrams, or your husband, or your male mahrams.