Here's another indulgenced prayer that takes about a minute to say. Traditionally, the angelus is said at 6 am, 12 noon, and 6 pm, and a partial indulgence is granted to those who recite it at any or all of these times. I realized today that I am generally holding a baby and walking around at all three of these times, so a memorized prayer would be really easy to do at those times.
Here's the text of the prayer in Latin:
V. Angelus Domini nuntiavit Mariæ.
R. Et concepit de Spiritu Sancto.
Ave Maria, gratia plena, Dominus tecum. Benedicta tu in mulieribus, et benedictus fructus ventris tui, Iesus. Sancta Maria, Mater Dei, ora pro nobis peccatoribus, nunc et in hora mortis nostræ. Amen.
V. Ecce Ancilla Domini.
R. Fiat mihi secundum Verbum tuum.
V. Et Verbum caro factum est.
R. Et habitavit in nobis.
V. Ora pro nobis, Sancta Dei Genetrix.
R. Ut digni efficiamur promissionibus Christi.
Oremus: Gratiam tuam quæsumus, Domine, mentibus nostris infunde; ut qui, angelo nuntiante,
Christi Filii tui Incarnationem cognovimus, per passionem eius et crucem, ad resurrectionis gloriam perducamur. Per eumdem Christum Dominum nostrum. Amen.
And here is the prayer in English:
V. The angel of the Lord declared unto Mary.
R. And she conceived by the Holy Spirit.
Hail Mary, full of grace, the Lord is with thee. Blessed art thou among women, and blessed is the fruit of thy womb, Jesus. Holy Mary, mother of God, pray for us sinners, now and at the hour of our death. Amen.
V. Behold the handmaid of the Lord.
R. Be it done to me according to thy word.
Hail Mary ...
V. And the Word was made flesh.
R. And dwelt amongst us.
Hail Mary ...
V. Pray for us, O holy mother of God.
R. That we may be made worthy of the promises of Christ.
Let us pray. Pour forth, we beseech Thee, O Lord, Thy grace into our hearts, that we to whom the incarnation of Christ Thy Son was made known by the message of an angel, may by His Passion and Cross be brought to the glory of His Resurrection; through Christ our Lord. Amen.