In the Roman rite, the prayer to St Michael is still said (as part of the Leonine prayers) after Low Mass:
"Saint Michael, the archangel defend us in battle; be thou our safeguard against the wickedness and snares of the devil. May God rebuke him we humbly pray and do thou, O prince of the heavenly host by the power of God, thrust down into hell, satan and all the evil spirits who prowl about the world for the ruin of souls."
Pope Leo XIII mandated this (adapted short exorcism) prayer after a vision of the devil attempting to take control of the Church.
Pope Leo XIII also wrote several encyclicals on the importance of the rosary which is another powerful weapon against the evil empire.
As part of his devotion to the holy rosary, Pope Leo XIII established the Confraternity of the Holy Rosary.
For more on the Confraternity of the Holy Rosary, please see:
http://www.memorare.com/mary/conf.html
Of course, I would be remiss if I didn't at the same time once again mention the Universal Living Rosary (under the patronage of dearly beloved St Philomena):
http://www.philomena.org/
"In the Roman rite, the prayer to St Michael is still said (as part of the Leonine prayers) after Low Mass:"
In the Tridentine Rite, yes. In the NO Mass, not that I've ever heard or seen.
Correction --- It is still said in the Indult Tridentine Rite (b/k/a the Mass of the 1962 Missal), but not in the Latin Riite (b/k/a the Novus Ordo Rite). Trust me on this one! I grew up as a child in the Latin Rite (now known as the Mass of the 1962 Missal) and for the past 40 years have 'adjusted' to the changes made. In the current Latin Rite, the prayer to St. Michael is no longer used.
Here is the present 'definition' of the Roman Rite liturgies, compliments of EWTN. As a point of information, EWTN's Sunday liturgy is now a high mass, following the Novus Ordo Rite, but totally in Latin. The priests vest in brocade, there are 6 candles on the altar, incense is used in the liturgy. It is extremely dignified and quite beautiful.
• Roman - The overwhelming majority of Latin Catholics and of Catholics in general. Patriarch of this and the other Roman Rites is the Bishop of Rome. The current Roman Rite is that of the 1969 Missale Romanum, to be published in a third edition in 2001.
- Missal of 1962 (Tridentine Mass) - Some institutes within the Roman Rite, such as the Priestly Fraternity of St. Peter, have the faculty to celebrate the sacramental rites according to the forms in use prior to the Second Vatican Council. This faculty can also be obtained by individual priests from their bishop or from the Pontifical Council Ecclesia Dei.
- Anglican Use - Since the 1980s the Holy See has granted some former Anglican and Episcopal clergy converting with their parishes the faculty of celebrating the sacramental rites according to Anglican forms, doctrinally corrected.
• Mozarabic - The Rite of the Iberian peninsula (Spain and Portugal) known from at least the 6th century, but probably with roots to the original evangelization. Beginning in the 11th century it was generally replaced by the Roman Rite, although it has remained the Rite of the Cathedral of the Archdiocese of Toledo, Spain, and six parishes which sought permission to adhere to it. Its celebration today is generally semi-private.
• Ambrosian - The Rite of the Archdiocese of Milan, Italy, thought to be of early origin and probably consolidated, but not originated, by St. Ambrose. Pope Paul VI was from this Roman Rite. It continues to be celebrated in Milan, though not by all parishes.
• Bragan - Rite of the Archdiocese of Braga, the Primatial See of Portugal, it derives from the 12th century or earlier. It continues to be of occasional use.
• Dominican - Rite of the Order of Friars Preacher (OP), founded by St. Dominic in 1215.
• Carmelite - Rite of the Order of Carmel, whose modern foundation was by St. Berthold c.1154.
• Carthusian - Rite of the Carthusian Order founded by St. Bruno in 1084.