One of my favorites
St. Andrew Christmas Novena Prayer to Obtain Favors
Hail and blessed be the hour and moment in which the Son of God was born of the most pure Virgin Mary, at midnight, in Bethlehem, in piercing cold. In that hour, vouchsafe, O my God! to hear my prayer and grant my desires, through the merits of Our Saviour Jesus Christ, and of His Blessed Mother. Amen.
(It is piously believed that whoever recites the above prayer fifteen times a day from the feast of St. Andrew (30th November) until Christmas will obtain what is asked.)