I meant to write about this last month and time got completely away from me. During one of our theology classes Sister spoke about purgatory and mentioned The Heroic Act of Charity. I learned about this many years ago though have not spoken much about it.
Just as we pray for one another here and now, we offer for and enjoy the prayers of the faithful who have left this world but who still love us and pray for our salvation. Surely such an act of generosity to them will never go unrewarded. May they Rest In Peace.
THE HEROIC ACT IN FAVOR OF THE SOULS IN PURGATORY
O MY GOD! for Thy greater glory, and to imitate as closely as possible the generous Heart of Jesus, my Redeemer, and also to testify my devotion to the Blessed Virgin, my Mother, who is also the Mother of the Souls in Purgatory, I place in her hands all my satisfactory works, as well as the fruit of all those which may be offered for my intention after my death, that she may apply them to the Souls in Purgatory according to her wisdom and good pleasure. Amen.
"This Heroic Act of Charity is the completely unselfish offering to God of all the satisfactory value of one's prayers and good works — plus the value of any that might be offered for one after one's death — for the benefit of the Souls in Purgatory, rather than for oneself. The "satisfactory value" of a good work is its value with regard to making up for our sins and reducing our stay in Purgatory. However, the "meritorious value" of our good works is inalienable, i.e., our merits, which give us a right to an increase of glory in Heaven, cannot be applied to anyone else. Moreover, a person who has made the Heroic Act may still pray for himself, friends and other intentions.
The Heroic Act is revocable at will and is not a vow. Its actual ratification depends on the will of God. By making this act with purity of intention, one is relying upon the mercy of God and the prayers of the Communion of Saints to assist his soul after death. The Heroic Act was approved and encouraged by Pope Benedict XIII [1724-1730]." – catholictradition.org
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Starry Sky Journal 
This is so beautiful! I`ve never heard about it. Spiritual heroism. Wow, to give away all the help coming your way in purgatory for someone unknown out of pure love. Beautiful!