I've been thinking hard about the subject of "hindered prayers." What are those things that God's Word specifically say will prevent or hinder my prayers to Him? Peter gives an example related to a husband's responsibility for the conduct of his wife. If her conduct is going poorly, it is the husband's responsibility and the consequence is hindered prayer.
In seeking guidance on this, I found the above link. A very comprehensive article on the subject, and a must-read for husbands and husbands-to-be. The author's interpretations are well laid out and justified, and he breaks down the verse in detail. Not a lot of direct application examples, but the spirit of the things Peter describes are all there.